| Rank | Czech as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 2.4% | Miller Place Union Free School District / 15,974 |
| 2. | 2.3% | Shelter Island Union Free School District / 2,604 |
| 3. | 2.1% | Odessa-Montour Central School District / 5,735 |
| 4. | 2.0% | Union-Endicott Central School District / 31,562 |
| 5. | 2.0% | Andes Central School District / 873 |
| 6. | 2.0% | Chenango Forks Central School District / 9,505 |
| 7. | 1.9% | Elizabethtown-Lewis Central School District / 2,805 |
| 8. | 1.8% | Maine-Endwell Central School District / 15,291 |
| 9. | 1.8% | Lansing Central School District / 7,346 |
| 10. | 1.8% | East Islip Union Free School District / 24,940 |
| 11. | 1.7% | Williamson Central School District / 6,796 |
| 12. | 1.7% | Harpursville Central School District / 5,996 |
| 13. | 1.6% | Vestal Central School District / 32,051 |
| 14. | 1.6% | Watkins Glen Central School District / 8,229 |
| 15. | 1.5% | Downsville Central School District / 2,578 |
| 15. | 1.5% | Tioga Central School District / 5,021 |
| 17. | 1.5% | Johnson City Central School District / 20,235 |
| 18. | 1.5% | Sayville Union Free School District / 17,674 |
| 19. | 1.5% | Southold Union Free School District / 6,172 |
| 20. | 1.4% | Bellmore Union Free School District / 12,516 |
| 21. | 1.4% | Liberty Central School District / 10,506 |
| 22. | 1.4% | Remsenburg-Speonk Union Free School District / 1,576 |
| 23. | 1.4% | Clymer Central School District / 3,067 |
| 24. | 1.3% | Gananda Central School District / 5,409 |
| 24. | 1.3% | Menands Union Free School District / 3,596 |
| 26. | 1.3% | Skaneateles Central School District / 9,199 |
| 27. | 1.3% | Hancock Central School District / 2,478 |
| 28. | 1.2% | Jefferson Central School District / 1,912 |
| 28. | 1.2% | Mayfield Central School District / 6,174 |
| 30. | 1.2% | Connetquot Central School District / 40,322 |
| 30. | 1.2% | Lake Placid Central School District / 6,453 |
| 32. | 1.2% | New Suffolk Common School District / 188 |
| 33. | 1.2% | Bolton Central School District / 2,300 |
| 34. | 1.2% | Hendrick Hudson Central School District / 15,519 |
| 35. | 1.2% | Candor Central School District / 5,177 |
| 36. | 1.2% | Pine Plains Central School District / 9,301 |
| 37. | 1.2% | North Warren Central School District / 4,583 |
| 38. | 1.1% | Gilboa-Conesville Central School District / 2,703 |
| 38. | 1.1% | Binghamton Common School District / 485 |
| 38. | 1.1% | Ramapo Central School District / 28,538 |
| 41. | 1.1% | South Country Central School District / 28,965 |
| 41. | 1.1% | Three Village Central School District / 47,403 |
| 41. | 1.1% | Elmira Heights Central School District / 7,030 |
| 41. | 1.1% | Wilson Central School District / 8,749 |
| 45. | 1.1% | Ardsley Union Free School District / 9,649 |
| 46. | 1.1% | Greenville Central School District / 8,165 |
| 47. | 1.1% | Binghamton City School District / 47,391 |
| 48. | 1.1% | Irvington Union Free School District / 9,375 |
| 49. | 1.1% | Sullivan West Central School District / 11,021 |
| 50. | 1.0% | Red Hook Central School District / 13,679 |
| 50. | 1.0% | Rocky Point Union Free School District / 17,233 |
| 50. | 1.0% | Plainedge Union Free School District / 20,405 |
| 53. | 1.0% | Lawrence Union Free School District / 35,466 |
| 53. | 1.0% | Avoca Central School District / 3,312 |
| 53. | 1.0% | Garrison Union Free School District / 3,225 |
| 53. | 1.0% | Ithaca City School District / 65,413 |
| 57. | 1.0% | Richfield Springs Central School District / 3,908 |
| 57. | 1.0% | Carmel Central School District / 30,454 |
| 59. | 1.0% | Cleveland Hill Union Free School District / 11,150 |
| 60. | 1.0% | Oysterponds Union Free School District / 1,801 |
| 60. | 1.0% | Homer Central School District / 13,025 |
| 60. | 1.0% | Name N/A / 12,180 |
| 60. | 1.0% | Somers Central School District / 19,433 |
| 60. | 1.0% | Bemus Point Central School District / 5,117 |
| 60. | 1.0% | Port Jefferson Union Free School District / 8,061 |
| 66. | 1.0% | Afton Central School District / 4,112 |
| 67. | 1.0% | Adirondack Central School District / 8,825 |
| 67. | 1.0% | Grand Island Central School District / 19,974 |
| 69. | 1.0% | Chenango Valley Central School District / 12,819 |
| 69. | 1.0% | South Orangetown Central School District / 20,059 |
| 71. | 1.0% | New Lebanon Central School District / 4,272 |
| 71. | 1.0% | Arlington Central School District / 57,888 |
| 71. | 1.0% | Whitney Point Central School District / 9,222 |
| 74. | 0.9% | Berne-Knox-Westerlo Central School District / 6,168 |
| 75. | 0.9% | Hyde Park Central School District / 32,806 |
| 76. | 0.9% | Delhi Central School District / 7,953 |
| 76. | 0.9% | Northport-East Northport Union Free School District / 37,536 |
| 76. | 0.9% | Ellenville Central School District / 12,775 |
| 79. | 0.9% | Ripley Central School District / 1,607 |
| 79. | 0.9% | Eldred Central School District / 5,176 |
| 79. | 0.9% | Hoosic Valley Central School District / 6,488 |
| 79. | 0.9% | Sandy Creek Central School District / 5,698 |
| 83. | 0.9% | Wappingers Central School District / 71,763 |
| 83. | 0.9% | Dolgeville Central School District / 5,346 |
| 83. | 0.9% | Burnt Hills-Ballston Lake Central School District / 18,557 |
| 83. | 0.9% | Holland Central School District / 6,412 |
| 83. | 0.9% | Moriah Central School District / 4,846 |
| 88. | 0.9% | Islip Union Free School District / 19,807 |
| 89. | 0.9% | Galway Central School District / 6,569 |
| 89. | 0.9% | Canaseraga Central School District / 1,876 |
| 91. | 0.9% | Patchogue-Medford Union Free School District / 50,920 |
| 91. | 0.9% | Bronxville Union Free School District / 6,329 |
| 91. | 0.9% | Mamaroneck Union Free School District / 28,390 |
| 91. | 0.9% | Livonia Central School District / 10,648 |
| 91. | 0.9% | Deer Park Union Free School District / 26,329 |
| 96. | 0.9% | North Merrick Union Free School District / 13,771 |
| 96. | 0.9% | Frewsburg Central School District / 5,033 |
| 96. | 0.9% | Norwood-Norfolk Central School District / 6,963 |
| 99. | 0.8% | Niskayuna Central School District / 23,300 |
| 100. | 0.8% | Kinderhook Central School District / 13,584 |
| 100. | 0.8% | Belfast Central School District / 2,335 |
| 102. | 0.8% | Newburgh City School District / 66,006 |
| 102. | 0.8% | Ilion Central School District / 9,632 |
| 102. | 0.8% | Cold Spring Harbor Central School District / 8,323 |
| 102. | 0.8% | Oppenheim-Ephratah Central School District / 2,493 |
| 102. | 0.8% | Duanesburg Central School District / 4,910 |
| 107. | 0.8% | Oxford Academy and Central School District / 5,579 |
| 107. | 0.8% | Pawling Central School District / 8,718 |
| 107. | 0.8% | Georgetown-South Otselic Central School District / 2,629 |
| 107. | 0.8% | Sag Harbor Union Free School District / 6,614 |
| 107. | 0.8% | Cooperstown Central School District / 6,846 |
| 107. | 0.8% | East Quogue Union Free School District / 4,683 |
| 113. | 0.8% | New Hyde Park-Garden City Park Union Free School District / 22,417 |
| 114. | 0.8% | Kings Park Central School District / 22,873 |
| 114. | 0.8% | Bainbridge-Guilford Central School District / 5,284 |
| 114. | 0.8% | Oyster Bay-East Norwich Central School District / 11,686 |
| 117. | 0.8% | Johnstown City School District / 11,278 |
| 117. | 0.8% | Warrensburg Central School District / 5,731 |
| 119. | 0.8% | Harborfields Central School District / 18,448 |
| 119. | 0.8% | Dover Union Free School District / 10,336 |
| 121. | 0.8% | Clinton Central School District / 12,223 |
| 121. | 0.8% | Edgemont Union Free School District / 7,595 |
| 121. | 0.8% | Smithtown Central School District / 56,722 |
| 121. | 0.8% | Scarsdale Union Free School District / 17,667 |
| 125. | 0.8% | Charlotte Valley Central School District / 2,971 |
| 126. | 0.7% | Florida Union Free School District / 4,753 |
| 126. | 0.7% | Levittown Union Free School District / 47,306 |
| 126. | 0.7% | Middleburgh Central School District / 6,563 |
| 129. | 0.7% | Saranac Lake Central School District / 13,571 |
| 129. | 0.7% | Bedford Central School District / 28,362 |
| 129. | 0.7% | Granville Central School District / 7,466 |
| 129. | 0.7% | Hilton Central School District / 26,048 |
| 133. | 0.7% | Tully Central School District / 6,100 |
| 133. | 0.7% | Shoreham-Wading River Central School District / 12,967 |
| 133. | 0.7% | Stillwater Central School District / 7,521 |
| 133. | 0.7% | Milford Central School District / 3,244 |
| 137. | 0.7% | Batavia City School District / 18,614 |
| 137. | 0.7% | Wantagh Union Free School District / 16,920 |
| 139. | 0.7% | Hauppauge Union Free School District / 23,120 |
| 140. | 0.7% | Huntington Union Free School District / 34,310 |
| 140. | 0.7% | Marathon Central School District / 4,545 |
| 140. | 0.7% | Mattituck-Cutchogue Union Free School District / 8,886 |
| 140. | 0.7% | Portville Central School District / 4,869 |
| 144. | 0.7% | Long Beach City School District / 38,616 |
| 144. | 0.7% | Naples Central School District / 5,122 |
| 146. | 0.7% | Bath Central School District / 11,370 |
| 146. | 0.7% | Brookfield Central School District / 1,184 |
| 148. | 0.7% | Yorktown Central School District / 19,936 |
| 148. | 0.7% | Margaretville Central School District / 3,982 |
| 148. | 0.7% | Sachem Central School District / 84,363 |
| 148. | 0.7% | Livingston Manor Central School District / 3,578 |
| 148. | 0.7% | Warwick Valley Central School District / 23,153 |
| 148. | 0.7% | Oneida City School District / 15,831 |
| 148. | 0.7% | Corning City School District / 33,694 |
| 155. | 0.7% | Pleasantville Union Free School District / 7,944 |
| 155. | 0.7% | Jericho Union Free School District / 15,587 |
| 155. | 0.7% | Pelham Union Free School District / 12,225 |
| 155. | 0.7% | Onondaga Central School District / 6,345 |
| 159. | 0.6% | East Greenbush Central School District / 29,257 |
| 159. | 0.6% | Greece Central School District / 81,656 |
| 159. | 0.6% | Camden Central School District / 13,337 |
| 159. | 0.6% | Dryden Central School District / 12,128 |
| 159. | 0.6% | Syosset Central School District / 34,967 |
| 159. | 0.6% | Bellmore-Merrick Central High School District / 69,645 |
| 165. | 0.6% | Sherman Central School District / 3,057 |
| 165. | 0.6% | North Tonawanda City School District / 31,716 |
| 165. | 0.6% | St. Johnsville Central School District / 3,359 |
| 165. | 0.6% | Fillmore Central School District / 5,372 |
| 165. | 0.6% | North Shore Central School District / 16,012 |
| 165. | 0.6% | Briarcliff Manor Union Free School District / 7,902 |
| 171. | 0.6% | Wells Central School District / 1,105 |
| 172. | 0.6% | North Colonie Central School District / 38,487 |
| 172. | 0.6% | Hamilton Central School District / 6,750 |
| 172. | 0.6% | Edmeston Central School District / 3,044 |
| 172. | 0.6% | Washingtonville Central School District / 25,419 |
| 172. | 0.6% | Croton-Harmon Union Free School District / 9,202 |
| 172. | 0.6% | Fabius-Pompey Central School District / 4,883 |
| 178. | 0.6% | Northeast Central School District / 7,540 |
| 178. | 0.6% | Locust Valley Central School District / 15,512 |
| 178. | 0.6% | Riverhead Central School District / 37,734 |
| 178. | 0.6% | Saugerties Central School District / 20,369 |
| 178. | 0.6% | Lyndonville Central School District / 4,387 |
| 183. | 0.6% | Mount Sinai Union Free School District / 12,151 |
| 183. | 0.6% | Greene Central School District / 7,029 |
| 183. | 0.6% | Fonda-Fultonville Central School District / 8,616 |
| 183. | 0.6% | Eastport-South Manor Central School District / 17,519 |
| 187. | 0.6% | South Huntington Union Free School District / 38,934 |
| 187. | 0.6% | Solvay Union Free School District / 10,014 |
| 187. | 0.6% | East Williston Union Free School District / 8,479 |
| 190. | 0.6% | New Paltz Central School District / 19,643 |
| 190. | 0.6% | Herkimer Central School District / 9,983 |
| 190. | 0.6% | Franklin Central School District / 2,321 |
| 190. | 0.6% | Amagansett Union Free School District / 1,103 |
| 190. | 0.6% | Susquehanna Valley Central School District / 11,059 |
| 190. | 0.6% | Cambridge Central School District / 6,734 |
| 196. | 0.6% | Brockport Central School District / 27,105 |
| 197. | 0.6% | Little Falls City School District / 7,234 |
| 197. | 0.6% | New Rochelle City School District / 75,823 |
| 197. | 0.6% | Glen Cove City School District / 26,728 |
| 197. | 0.6% | Wellsville Central School District / 9,219 |
| 197. | 0.6% | Warsaw Central School District / 6,387 |
| 197. | 0.6% | Rotterdam-Mohonasen Central School District / 20,603 |
| 197. | 0.6% | Seaford Union Free School District / 16,354 |
| 204. | 0.5% | Half Hollow Hills Central School District / 48,481 |
| 204. | 0.5% | Goshen Central School District / 18,440 |
| 204. | 0.5% | Oceanside Union Free School District / 35,827 |
| 204. | 0.5% | Penfield Central School District / 31,323 |
| 204. | 0.5% | Schalmont Central School District / 13,919 |
| 204. | 0.5% | Newark Valley Central School District / 7,615 |
| 204. | 0.5% | Bloomfield Central School District / 6,259 |
| 204. | 0.5% | Crown Point Central School District / 2,082 |
| 212. | 0.5% | Seneca Falls Central School District / 9,811 |
| 212. | 0.5% | Putnam Valley Central School District / 10,752 |
| 212. | 0.5% | Bayport-Blue Point Union Free School District / 14,318 |
| 212. | 0.5% | South Colonie Central School District / 39,971 |
| 212. | 0.5% | Kingston City School District / 51,715 |
| 217. | 0.5% | Falconer Central School District / 7,679 |
| 217. | 0.5% | Depew Union Free School District / 15,481 |
| 217. | 0.5% | Clarkstown Central School District / 47,867 |
| 217. | 0.5% | Scotia-Glenville Central School District / 18,356 |
| 217. | 0.5% | Edinburg Common School District / 1,566 |
| 217. | 0.5% | Shenendehowa Central School District / 61,636 |
| 217. | 0.5% | Yorkshire-Pioneer Central School District / 16,451 |
| 224. | 0.5% | Rondout Valley Central School District / 16,974 |
| 224. | 0.5% | Harrison Central School District / 26,802 |
| 224. | 0.5% | Hewlett-Woodmere Union Free School District / 20,465 |
| 224. | 0.5% | Gowanda Central School District / 12,287 |
| 224. | 0.5% | Chatham Central School District / 9,445 |
| 229. | 0.5% | Forestville Central School District / 3,329 |
| 229. | 0.5% | Hastings-on-Hudson Union Free School District / 8,500 |
| 229. | 0.5% | Katonah-Lewisboro Union Free School District / 18,121 |
| 229. | 0.5% | South Seneca Central School District / 6,841 |
| 233. | 0.5% | Friendship Central School District / 2,272 |
| 233. | 0.5% | Pine Bush Central School District / 33,041 |
| 233. | 0.5% | Germantown Central School District / 4,299 |
| 233. | 0.5% | Island Park Union Free School District / 8,465 |
| 233. | 0.5% | Parishville-Hopkinton Central School District / 2,470 |
| 233. | 0.5% | Chittenango Central School District / 13,867 |
| 239. | 0.5% | Westhill Central School District / 12,083 |
| 239. | 0.5% | Lansingburgh Central School District / 18,543 |
| 239. | 0.5% | Taconic Hills Central School District / 11,883 |
| 239. | 0.5% | Byron-Bergen Central School District / 7,107 |
| 243. | 0.5% | Gates-Chili Central School District / 33,331 |
| 243. | 0.5% | Owego-Apalachin Central School District / 15,168 |
| 243. | 0.5% | North Syracuse Central School District / 59,461 |
| 243. | 0.5% | Marcus Whitman Central School District / 10,318 |
| 243. | 0.5% | Cazenovia Central School District / 10,781 |
| 243. | 0.5% | Springs Union Free School District / 6,764 |
| 243. | 0.5% | Cassadaga Valley Central School District / 7,376 |
| 243. | 0.5% | Madrid-Waddington Central School District / 4,212 |
| 243. | 0.5% | Unadilla Valley Central School District / 5,964 |
| 252. | 0.5% | North Bellmore Union Free School District / 26,004 |
| 252. | 0.5% | Peru Central School District / 12,666 |
| 252. | 0.5% | Madison Central School District / 3,083 |
| 252. | 0.5% | Victor Central School District / 21,203 |
| 252. | 0.5% | Schodack Central School District / 6,886 |
| 257. | 0.5% | Guilderland Central School District / 35,963 |
| 257. | 0.5% | Campbell-Savona Central School District / 6,000 |
| 257. | 0.5% | Port Chester-Rye Union Free School District / 31,399 |
| 257. | 0.5% | Albany City School District / 97,951 |
| 257. | 0.5% | Olean City School District / 15,947 |
| 257. | 0.5% | Longwood Central School District / 64,138 |
| 257. | 0.5% | Windsor Central School District / 10,084 |
| 257. | 0.5% | Schenevus Central School District / 2,233 |
| 257. | 0.5% | Oswego City School District / 33,712 |
| 266. | 0.4% | Mohawk Central School District / 5,447 |
| 266. | 0.4% | Hadley-Luzerne Central School District / 6,478 |
| 266. | 0.4% | Haverstraw-Stony Point Central School District / 46,952 |
| 266. | 0.4% | Massapequa Union Free School District / 47,739 |
| 266. | 0.4% | Cairo-Durham Central School District / 9,774 |
| 271. | 0.4% | Oakfield-Alabama Central School District / 5,290 |
| 271. | 0.4% | Bay Shore Union Free School District / 34,003 |
| 271. | 0.4% | Ravena-Coeymans-Selkirk Central School District / 13,738 |
| 271. | 0.4% | Cobleskill-Richmondville Central School District / 13,882 |
| 271. | 0.4% | Fayetteville-Manlius Central School District / 24,810 |
| 271. | 0.4% | Central Square Central School District / 24,664 |
| 271. | 0.4% | Plattsburgh City School District / 19,676 |
| 271. | 0.4% | West Irondequoit Central School District / 24,121 |
| 271. | 0.4% | Sauquoit Valley Central School District / 6,172 |
| 271. | 0.4% | Iroquois Central School District / 17,661 |
| 281. | 0.4% | Marcellus Central School District / 10,574 |
| 281. | 0.4% | Tupper Lake Central School District / 6,285 |
| 281. | 0.4% | Farmingdale Union Free School District / 39,954 |
| 281. | 0.4% | Clarence Central School District / 26,589 |
| 281. | 0.4% | Wheelerville Union Free School District / 1,645 |
| 281. | 0.4% | Minisink Valley Central School District / 22,997 |
| 281. | 0.4% | Commack Union Free School District / 37,483 |
| 281. | 0.4% | Lakeland Central School District / 35,833 |
| 289. | 0.4% | Schenectady City School District / 65,366 |
| 289. | 0.4% | AuSable Valley Central School District / 8,984 |
| 289. | 0.4% | Broadalbin-Perth Central School District / 11,345 |
| 289. | 0.4% | Cherry Valley-Springfield Central School District / 4,065 |
| 289. | 0.4% | Franklin Square Union Free School District / 24,114 |
| 289. | 0.4% | Tuckahoe Common School District / 3,568 |
| 289. | 0.4% | Penn Yan Central School District / 15,462 |
| 296. | 0.4% | Owen D. Young Central School District / 1,776 |
| 296. | 0.4% | Elmira City School District / 49,202 |
| 296. | 0.4% | Northeastern Clinton Central School District / 9,030 |
| 296. | 0.4% | Moravia Central School District / 7,186 |
| 296. | 0.4% | Wayne Central School District / 14,892 |
| 296. | 0.4% | Chappaqua Central School District / 16,506 |
| 296. | 0.4% | Horseheads Central School District / 26,794 |
| 296. | 0.4% | Dobbs Ferry Union Free School District / 9,083 |
| 296. | 0.4% | Phelps-Clifton Springs Central School District / 11,425 |
| 296. | 0.4% | Southampton Union Free School District / 10,325 |
| 296. | 0.4% | Mineola Union Free School District / 23,100 |
| 307. | 0.4% | Caledonia-Mumford Central School District / 5,590 |
| 307. | 0.4% | Bradford Central School District / 2,480 |
| 307. | 0.4% | Quogue Union Free School District / 808 |
| 307. | 0.4% | Troy City School District / 38,708 |
| 307. | 0.4% | Schuylerville Central School District / 9,144 |
| 312. | 0.4% | Jasper-Troupsburg Central School District / 3,505 |
| 312. | 0.4% | Greenwood Lake Union Free School District / 6,388 |
| 312. | 0.4% | West Islip Union Free School District / 28,622 |
| 312. | 0.4% | West Genesee Central School District / 31,203 |
| 312. | 0.4% | Center Moriches Union Free School District / 8,064 |
| 312. | 0.4% | Spackenkill Union Free School District / 8,982 |
| 312. | 0.4% | Poland Central School District / 4,235 |
| 312. | 0.4% | Schroon Lake Central School District / 2,612 |
| 312. | 0.4% | Tuxedo Union Free School District / 2,648 |
| 312. | 0.4% | Lynbrook Union Free School District / 16,935 |
| 312. | 0.4% | Westhampton Beach Union Free School District / 6,138 |
| 312. | 0.4% | Rhinebeck Central School District / 10,075 |
| 324. | 0.4% | Hamburg Central School District / 24,987 |
| 324. | 0.4% | Geneva City School District / 17,502 |
| 324. | 0.4% | Name N/A / 251,494 |
| 324. | 0.4% | Hammondsport Central School District / 4,202 |
| 324. | 0.4% | Averill Park Central School District / 18,967 |
| 324. | 0.4% | Baldwin Union Free School District / 33,404 |
| 324. | 0.4% | Marlboro Central School District / 12,226 |
| 324. | 0.4% | McGraw Central School District / 3,483 |
| 324. | 0.4% | Herricks Union Free School District / 25,188 |
| 324. | 0.4% | Schoharie Central School District / 7,336 |
| 324. | 0.4% | Peekskill City School District / 22,230 |
| 324. | 0.4% | Churchville-Chili Central School District / 27,174 |
| 324. | 0.4% | Fort Plain Central School District / 5,555 |
| 324. | 0.4% | Brewster Central School District / 21,474 |
| 338. | 0.4% | Oneonta City School District / 20,414 |
| 338. | 0.4% | Monroe-Woodbury Central School District / 35,706 |
| 338. | 0.4% | Rush-Henrietta Central School District / 50,236 |
| 338. | 0.4% | Pittsford Central School District / 33,790 |
| 338. | 0.4% | Berlin Central School District / 6,366 |
| 338. | 0.4% | Central Islip Union Free School District / 39,012 |
| 338. | 0.4% | Whitesboro Central School District / 26,575 |
| 345. | 0.4% | Kiryas Joel Village Union Free School District / 19,089 |
| 345. | 0.4% | Coxsackie-Athens Central School District / 13,252 |
| 345. | 0.4% | Hermon-DeKalb Central School District / 2,454 |
| 345. | 0.4% | Honeoye Central School District / 6,218 |
| 345. | 0.4% | Brocton Central School District / 4,833 |
| 345. | 0.4% | West Hempstead Union Free School District / 16,311 |
| 345. | 0.4% | Port Washington Union Free School District / 30,703 |
| 352. | 0.3% | Evans-Brant Central School District / 17,569 |
| 352. | 0.3% | West Babylon Union Free School District / 29,259 |
| 352. | 0.3% | Greenport Union Free School District / 4,616 |
| 352. | 0.3% | Mexico Central School District / 12,375 |
| 352. | 0.3% | Honeoye Falls-Lima Central School District / 13,554 |
| 352. | 0.3% | Ballston Spa Central School District / 27,347 |
| 352. | 0.3% | Middletown City School District / 40,414 |
| 359. | 0.3% | Prattsburgh Central School District / 2,794 |
| 359. | 0.3% | Elwood Union Free School District / 12,820 |
| 359. | 0.3% | Jamesville-DeWitt Central School District / 17,794 |
| 359. | 0.3% | North Collins Central School District / 4,204 |
| 359. | 0.3% | Bethpage Union Free School District / 19,867 |
| 359. | 0.3% | Roslyn Union Free School District / 16,938 |
| 359. | 0.3% | Floral Park-Bellerose Union Free School District / 20,280 |
| 359. | 0.3% | East Moriches Union Free School District / 5,221 |
| 359. | 0.3% | Canandaigua City School District / 25,241 |
| 359. | 0.3% | Sewanhaka Central High School District / 118,343 |
| 359. | 0.3% | Highland Falls Central School District / 12,636 |
| 370. | 0.3% | Pearl River Union Free School District / 14,597 |
| 370. | 0.3% | Eastchester Union Free School District / 18,033 |
| 370. | 0.3% | Frontier Central School District / 34,827 |
| 370. | 0.3% | William Floyd Union Free School District / 49,109 |
| 370. | 0.3% | Canajoharie Central School District / 6,348 |
| 370. | 0.3% | Heuvelton Central School District / 3,852 |
| 370. | 0.3% | Franklinville Central School District / 4,484 |
| 370. | 0.3% | Pocantico Hills Central School District / 4,646 |
| 370. | 0.3% | Lake George Central School District / 6,774 |
| 370. | 0.3% | Liverpool Central School District / 50,213 |
| 370. | 0.3% | Orchard Park Central School District / 32,354 |
| 381. | 0.3% | Cohoes City School District / 16,116 |
| 381. | 0.3% | Beacon City School District / 27,492 |
| 381. | 0.3% | Plainview-Old Bethpage Central School District / 28,429 |
| 381. | 0.3% | Tonawanda City School District / 15,249 |
| 381. | 0.3% | Corinth Central School District / 7,501 |
| 381. | 0.3% | Watervliet City School District / 11,103 |
| 381. | 0.3% | Brighton Central School District / 24,829 |
| 381. | 0.3% | South Kortright Central School District / 2,855 |
| 389. | 0.3% | Monticello Central School District / 21,480 |
| 389. | 0.3% | Saratoga Springs City School District / 49,373 |
| 389. | 0.3% | Hicksville Union Free School District / 39,215 |
| 389. | 0.3% | Alexandria Central School District / 3,851 |
| 389. | 0.3% | Cincinnatus Central School District / 3,453 |
| 389. | 0.3% | Nanuet Union Free School District / 13,611 |
| 395. | 0.3% | Lancaster Central School District / 39,888 |
| 395. | 0.3% | Brookhaven-Comsewogue Union Free School District / 23,830 |
| 395. | 0.3% | Bolivar-Richburg Central School District / 4,685 |
| 395. | 0.3% | South Glens Falls Central School District / 19,915 |
| 395. | 0.3% | Wallkill Central School District / 20,638 |
| 395. | 0.3% | Waverly Central School District / 10,313 |
| 395. | 0.3% | Kenmore-Tonawanda Union Free School District / 67,508 |
| 395. | 0.3% | Amsterdam City School District / 25,479 |
| 395. | 0.3% | Nyack Union Free School District / 25,923 |
| 404. | 0.3% | Cheektowaga Central School District / 21,382 |
| 404. | 0.3% | Mahopac Central School District / 26,031 |
| 404. | 0.3% | Haldane Central School District / 5,247 |
| 404. | 0.3% | East Rochester Union Free School District / 8,881 |
| 404. | 0.3% | Hunter-Tannersville Central School District / 3,722 |
| 409. | 0.3% | Greenburgh Central School District / 21,031 |
| 409. | 0.3% | Greenwich Central School District / 6,826 |
| 409. | 0.3% | East Ramapo Central School District / 107,914 |
| 409. | 0.3% | Kendall Central School District / 5,712 |
| 409. | 0.3% | Middle Country Central School District / 63,461 |
| 409. | 0.3% | Canastota Central School District / 9,900 |
| 409. | 0.3% | Catskill Central School District / 12,543 |
| 409. | 0.3% | Auburn City School District / 33,725 |
| 409. | 0.3% | Salem Central School District / 3,906 |
| 418. | 0.3% | Cato-Meridian Central School District / 6,868 |
| 418. | 0.3% | Cheektowaga-Sloan Union Free School District / 11,861 |
| 418. | 0.3% | Sweet Home Central School District / 35,641 |
| 418. | 0.3% | Frankfort-Schuyler Central School District / 7,238 |
| 418. | 0.3% | Yonkers City School District / 194,880 |
| 418. | 0.3% | East Rockaway Union Free School District / 10,258 |
| 418. | 0.3% | Queensbury Union Free School District / 21,647 |
| 425. | 0.3% | North Rose-Wolcott Central School District / 8,838 |
| 425. | 0.3% | Copenhagen Central School District / 2,373 |
| 425. | 0.3% | Rye Neck Union Free School District / 8,527 |
| 425. | 0.3% | Fallsburg Central School District / 11,161 |
| 425. | 0.3% | Rochester City School District / 211,994 |
| 425. | 0.3% | East Meadow Union Free School District / 51,125 |
| 425. | 0.3% | Green Island Union Free School District / 2,565 |
| 425. | 0.3% | East Hampton Union Free School District / 8,917 |
| 425. | 0.3% | Westfield Central School District / 5,100 |
| 425. | 0.3% | Amityville Union Free School District / 23,888 |
| 435. | 0.2% | Keshequa Central School District / 5,251 |
| 435. | 0.2% | West Seneca Central School District / 54,106 |
| 435. | 0.2% | Onteora Central School District / 16,180 |
| 435. | 0.2% | Williamsville Central School District / 71,888 |
| 435. | 0.2% | Alfred-Almond Central School District / 7,468 |
| 435. | 0.2% | Voorheesville Central School District / 7,664 |
| 435. | 0.2% | Malverne Union Free School District / 14,593 |
| 435. | 0.2% | Morristown Central School District / 3,430 |
| 435. | 0.2% | Hoosick Falls Central School District / 7,961 |
| 435. | 0.2% | Fredonia Central School District / 14,762 |
| 445. | 0.2% | North Babylon Union Free School District / 31,337 |
| 445. | 0.2% | Amherst Central School District / 24,522 |
| 445. | 0.2% | Sharon Springs Central School District / 1,883 |
| 445. | 0.2% | Spencerport Central School District / 23,878 |
| 445. | 0.2% | Hinsdale Central School District / 2,590 |
| 450. | 0.2% | Indian River Central School District / 12,979 |
| 450. | 0.2% | Valley Central School District / 26,564 |
| 452. | 0.2% | White Plains City School District / 55,881 |
| 452. | 0.2% | Jamestown City School District / 32,750 |
| 452. | 0.2% | Blind Brook-Rye Union Free School District / 6,340 |
| 452. | 0.2% | Barker Central School District / 4,736 |
| 452. | 0.2% | East Irondequoit Central School District / 27,472 |
| 452. | 0.2% | Baldwinsville Central School District / 34,573 |
| 452. | 0.2% | Edwards-Knox Central School District / 2,890 |
| 452. | 0.2% | Babylon Union Free School District / 11,507 |
| 452. | 0.2% | Rensselaer City School District / 9,045 |
| 452. | 0.2% | Beekmantown Central School District / 13,060 |
| 462. | 0.2% | Bethlehem Central School District / 27,715 |
| 462. | 0.2% | Alexander Central School District / 5,549 |
| 462. | 0.2% | Belleville Henderson Central School District / 3,884 |
| 462. | 0.2% | Webster Central School District / 54,065 |
| 462. | 0.2% | Ossining Union Free School District / 33,954 |
| 462. | 0.2% | Southern Cayuga Central School District / 6,969 |
| 468. | 0.2% | Romulus Central School District / 5,125 |
| 468. | 0.2% | Trumansburg Central School District / 7,289 |
| 468. | 0.2% | Southwestern Central School District / 9,060 |
| 468. | 0.2% | Niagara Falls City School District / 50,843 |
| 468. | 0.2% | Gloversville City School District / 19,621 |
| 468. | 0.2% | Deposit Central School District / 4,283 |
| 468. | 0.2% | Genesee Valley Central School District at Angelica-Belmont / 3,873 |
| 475. | 0.2% | Hannibal Central School District / 7,850 |
| 475. | 0.2% | Sidney Central School District / 7,430 |
| 475. | 0.2% | The Tarrytowns Union Free School District / 19,185 |
| 475. | 0.2% | Spencer-Van Etten Central School District / 5,846 |
| 475. | 0.2% | Chester Union Free School District / 6,304 |
| 475. | 0.2% | Fairport Central School District / 40,059 |
| 475. | 0.2% | Wyoming Central School District / 1,872 |
| 475. | 0.2% | Merrick Union Free School District / 17,354 |
| 475. | 0.2% | Port Jervis City School District / 17,673 |
| 484. | 0.2% | Garden City Union Free School District / 21,998 |
| 484. | 0.2% | Hudson Falls Central School District / 14,783 |
| 484. | 0.2% | Avon Central School District / 7,268 |
| 484. | 0.2% | Holley Central School District / 7,498 |
| 484. | 0.2% | Valley Stream Union Free School District 13 / 28,440 |
| 484. | 0.2% | New York City Department Of Education / 8,078,471 |
| 484. | 0.2% | Silver Creek Central School District / 6,483 |
| 484. | 0.2% | Manhasset Union Free School District / 16,711 |
| 492. | 0.2% | Freeport Union Free School District / 39,935 |
| 492. | 0.2% | Letchworth Central School District / 6,470 |
| 492. | 0.2% | Rome City School District / 39,681 |
| 492. | 0.2% | Cornwall Central School District / 17,002 |
| 492. | 0.2% | East Aurora Union Free School District / 13,082 |
| 492. | 0.2% | Hudson City School District / 16,265 |
| 498. | 0.2% | Island Trees Union Free School District / 16,000 |
| 498. | 0.2% | Jordan-Elbridge Central School District / 8,508 |
| 498. | 0.2% | Addison Central School District / 7,049 |
| 498. | 0.2% | Mount Morris Central School District / 6,113 |
| 498. | 0.2% | Millbrook Central School District / 7,786 |
| 498. | 0.2% | Newfane Central School District / 10,451 |
| 498. | 0.2% | Potsdam Central School District / 14,658 |
| 505. | 0.1% | Pulaski Central School District / 5,947 |
| 505. | 0.1% | Fulton City School District / 20,338 |
| 505. | 0.1% | Remsen Central School District / 3,170 |
| 505. | 0.1% | Waterloo Central School District / 12,351 |
| 505. | 0.1% | Lowville Academy and Central School District / 8,632 |
| 505. | 0.1% | Pembroke Central School District / 7,202 |
| 505. | 0.1% | Rockville Centre Union Free School District / 22,051 |
| 505. | 0.1% | Copiague Union Free School District / 29,688 |
| 505. | 0.1% | West Valley Central School District / 2,303 |
| 505. | 0.1% | Watertown City School District / 31,423 |
| 505. | 0.1% | Utica City School District / 61,922 |
| 516. | 0.1% | Lackawanna City School District / 18,239 |
| 516. | 0.1% | Laurens Central School District / 2,635 |
| 516. | 0.1% | Stamford Central School District / 2,729 |
| 516. | 0.1% | Geneseo Central School District / 11,194 |
| 516. | 0.1% | Cuba-Rushford Central School District / 6,295 |
| 516. | 0.1% | Massena Central School District / 17,403 |
| 516. | 0.1% | Holland Patent Central School District / 8,926 |
| 516. | 0.1% | Hampton Bays Union Free School District / 12,856 |
| 516. | 0.1% | Wayland-Cohocton Central School District / 9,627 |
| 525. | 0.1% | Pavilion Central School District / 4,601 |
| 525. | 0.1% | Wheatland-Chili Central School District / 5,612 |
| 525. | 0.1% | Otego-Unadilla Central School District / 7,403 |
| 525. | 0.1% | Canton Central School District / 11,563 |
| 525. | 0.1% | Great Neck Union Free School District / 43,899 |
| 525. | 0.1% | Syracuse City School District / 144,879 |
| 525. | 0.1% | Cortland City School District / 24,622 |
| 525. | 0.1% | Chautauqua Lake Central School District / 5,632 |
| 525. | 0.1% | Buffalo City School District / 266,012 |
| 534. | 0.1% | Mount Pleasant Central School District / 12,716 |
| 534. | 0.1% | Dansville Central School District / 10,139 |
| 534. | 0.1% | Stockbridge Valley Central School District / 3,231 |
| 534. | 0.1% | Newark Central School District / 15,231 |
| 534. | 0.1% | Sherrill City School District / 12,216 |
| 534. | 0.1% | Lewiston-Porter Central School District / 18,319 |
| 534. | 0.1% | Mount Vernon City School District / 67,073 |
| 534. | 0.1% | Valley Stream Central High School District / 59,577 |
| 534. | 0.1% | Mount Markham Central School District / 7,487 |
| 534. | 0.1% | Eden Central School District / 10,149 |
| 534. | 0.1% | Palmyra-Macedon Central School District / 12,493 |
| 534. | 0.1% | Walton Central School District / 6,590 |
| 534. | 0.1% | Morrisville-Eaton Central School District / 6,268 |
| 534. | 0.1% | Valley Stream Union Free School District 30 / 17,517 |
| 548. | 0.1% | Valhalla Union Free School District / 9,381 |
| 548. | 0.1% | Sodus Central School District / 7,786 |
| 548. | 0.1% | Cheektowaga-Maryvale Union Free School District / 19,036 |
| 548. | 0.1% | Altmar-Parish-Williamstown Central School District / 7,442 |
| 548. | 0.1% | Sherburne-Earlville Central School District / 9,066 |
| 553. | 0.1% | Randolph Central School District / 6,423 |
| 553. | 0.1% | North Salem Central School District / 7,183 |
| 553. | 0.1% | Gouverneur Central School District / 11,481 |
| 553. | 0.1% | Elmont Union Free School District / 51,532 |
| 553. | 0.1% | Malone Central School District / 20,439 |
| 553. | 0.1% | Byram Hills Central School District / 11,333 |
| 553. | 0.1% | Brentwood Union Free School District / 82,884 |
| 553. | 0.1% | Royalton-Hartland Central School District / 9,001 |
| 553. | 0.1% | Salamanca City School District / 7,890 |
| 562. | 0.1% | New Hartford Central School District / 16,842 |
| 562. | 0.1% | Hornell City School District / 10,654 |
| 562. | 0.1% | Norwich City School District / 13,526 |
| 562. | 0.1% | Glens Falls City School District / 15,213 |
| 562. | 0.1% | Highland Central School District / 11,978 |
| 562. | 0.1% | Poughkeepsie City School District / 32,326 |
| 568. | 0.1% | Springville-Griffith Institute Central School District / 13,795 |
| 569. | 0.1% | Uniondale Union Free School District / 41,921 |
| 569. | 0.1% | East Syracuse-Minoa Central School District / 21,970 |
| 569. | 0.1% | Brunswick Central School District (Brittonkill) / 8,440 |
| 569. | 0.1% | Lindenhurst Union Free School District / 41,756 |
| 569. | 0.1% | Allegany-Limestone Central School District / 9,622 |
| 569. | 0.1% | Union Springs Central School District / 6,098 |
| 575. | 0.1% | Attica Central School District / 13,529 |
| 575. | 0.1% | General Brown Central School District / 8,710 |
| 575. | 0.1% | Phoenix Central School District / 11,578 |
| 575. | 0.1% | Salmon River Central School District / 6,653 |
| 579. | 0.0% | Waterville Central School District / 5,937 |
| 579. | 0.0% | Red Creek Central School District / 6,736 |
| 579. | 0.0% | Port Byron Central School District / 5,331 |
| 579. | 0.0% | Weedsport Central School District / 5,683 |
| 579. | 0.0% | Carthage Central School District / 15,491 |
| 584. | 0.0% | Lockport City School District / 36,742 |
| 584. | 0.0% | Albion Central School District / 15,611 |
| 584. | 0.0% | Panama Central School District / 3,633 |
| 584. | 0.0% | Westbury Union Free School District / 24,719 |
Please note that we only rank locations with 'Czech as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Czech as First Ancestry Population Percentage' data are not listed.
*ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
