| Rank | Czech as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 4.4% | Boonton Township School District / 4,269 |
| 2. | 4.3% | Hope Township School District / 2,025 |
| 3. | 3.4% | Belvidere Town School District / 2,734 |
| 4. | 3.2% | Washington Township School District / 6,663 |
| 5. | 2.8% | Long Hill Township School District / 8,739 |
| 6. | 2.5% | High Bridge Borough School District / 3,706 |
| 7. | 2.1% | Rockleigh Borough School District / 519 |
| 8. | 2.0% | Woodlynne Borough School District / 2,949 |
| 9. | 2.0% | Little Ferry Borough School District / 10,602 |
| 10. | 1.9% | Harmony Township School District / 2,707 |
| 10. | 1.9% | Hardyston Township School District / 7,927 |
| 12. | 1.9% | Roosevelt Borough School District / 712 |
| 13. | 1.6% | Ho-Ho-Kus Borough School District / 4,056 |
| 14. | 1.6% | Milford Borough School District / 1,181 |
| 14. | 1.6% | Sussex-Wantage Regional School District / 13,242 |
| 16. | 1.6% | Metuchen Borough School District / 13,431 |
| 17. | 1.6% | Berkeley Heights Township School District / 13,133 |
| 18. | 1.6% | Wallkill Valley Regional School District / 18,694 |
| 19. | 1.6% | Fredon Township School District / 3,379 |
| 20. | 1.6% | Washington Township School District / 18,422 |
| 21. | 1.6% | Lopatcong Township School District / 7,701 |
| 21. | 1.6% | High Point Regional School District / 22,291 |
| 23. | 1.5% | South Amboy City School District / 8,502 |
| 24. | 1.5% | Kinnelon Borough School District / 10,176 |
| 25. | 1.5% | Rockaway Township School District / 24,020 |
| 25. | 1.5% | Frankford Township School District / 6,527 |
| 27. | 1.5% | Franklin Borough School District / 5,116 |
| 27. | 1.5% | Ogdensburg Borough School District / 2,371 |
| 27. | 1.5% | East Amwell Township School District / 4,111 |
| 30. | 1.4% | Northvale Borough School District / 4,585 |
| 31. | 1.4% | Byram Township School District / 8,446 |
| 32. | 1.4% | Manville Borough School District / 10,364 |
| 33. | 1.4% | Clementon Borough School District / 5,021 |
| 33. | 1.4% | Woodland Park Borough School District / 11,609 |
| 35. | 1.4% | Interlaken Borough School District / 770 |
| 36. | 1.4% | Lafayette Township School District / 2,522 |
| 37. | 1.4% | Chester Township School District / 9,190 |
| 38. | 1.3% | Fair Haven Borough School District / 6,099 |
| 39. | 1.3% | Beach Haven Borough School District / 1,404 |
| 40. | 1.3% | Frelinghuysen Township School District / 2,198 |
| 41. | 1.3% | Watchung Hills Regional School District / 29,579 |
| 42. | 1.2% | Highlands Borough School District / 5,063 |
| 42. | 1.2% | Kenilworth Borough School District / 7,810 |
| 44. | 1.2% | Delran Township School District / 16,773 |
| 45. | 1.2% | Wyckoff Township School District / 16,574 |
| 45. | 1.2% | West Morris Regional School District / 38,459 |
| 47. | 1.2% | Swedesboro-Woolwich School District / 11,513 |
| 47. | 1.2% | Woodland Township School District / 1,174 |
| 49. | 1.2% | Point Pleasant Borough School District / 18,704 |
| 49. | 1.2% | Warren Hills Regional School District / 24,286 |
| 51. | 1.2% | Verona Borough School District / 13,297 |
| 52. | 1.1% | Kingwood Township School District / 3,879 |
| 53. | 1.1% | Hanover Township School District / 13,622 |
| 54. | 1.1% | Upper Township School District / 12,257 |
| 55. | 1.1% | South Plainfield Borough School District / 23,090 |
| 55. | 1.1% | Lenape Valley Regional School District / 15,340 |
| 57. | 1.1% | Vernon Township School District / 24,376 |
| 57. | 1.1% | Alexandria Township School District / 4,921 |
| 59. | 1.1% | Wildwood Crest Borough School District / 3,374 |
| 59. | 1.1% | Hampton Borough School District / 1,367 |
| 59. | 1.1% | Morris Hills Regional School District / 53,509 |
| 62. | 1.1% | Delaware Township School District / 4,603 |
| 63. | 1.1% | Henry Hudson Regional School District / 9,505 |
| 63. | 1.1% | Montville Township School District / 21,468 |
| 63. | 1.1% | Ramsey Borough School District / 14,376 |
| 63. | 1.1% | Montvale Borough School District / 7,663 |
| 67. | 1.0% | Hamburg Borough School District / 3,280 |
| 67. | 1.0% | Downe Township School District / 1,427 |
| 67. | 1.0% | Flemington-Raritan Regional School District / 26,533 |
| 70. | 1.0% | Green Brook Township School District / 7,125 |
| 70. | 1.0% | Knowlton Township School District / 3,086 |
| 72. | 1.0% | Oxford Township School District / 2,515 |
| 72. | 1.0% | Randolph Township School District / 25,650 |
| 74. | 1.0% | Monmouth Beach Borough School District / 3,351 |
| 74. | 1.0% | Moonachie Borough School District / 2,706 |
| 76. | 1.0% | Hunterdon Central Regional School District / 51,482 |
| 76. | 1.0% | Greenwich Township School District / 5,548 |
| 78. | 1.0% | Westwood Regional School District / 19,889 |
| 78. | 1.0% | Stanhope Borough School District / 3,647 |
| 80. | 1.0% | Princeton Regional School District / 28,922 |
| 80. | 1.0% | Jefferson Township School District / 21,093 |
| 82. | 0.9% | Newton Town School District / 8,121 |
| 82. | 0.9% | Bernards Township School District / 26,310 |
| 82. | 0.9% | Lebanon Township School District / 6,514 |
| 85. | 0.9% | Lebanon Borough School District / 1,260 |
| 86. | 0.9% | Linwood City School District / 7,176 |
| 87. | 0.9% | Ramapo-Indian Hill Regional School District / 39,722 |
| 87. | 0.9% | Chesterfield Township School District / 7,412 |
| 89. | 0.9% | Clark Township School District / 14,599 |
| 90. | 0.9% | Saddle River Borough School District / 3,137 |
| 90. | 0.9% | Delaware Valley Regional School District / 16,691 |
| 92. | 0.9% | Bedminster Township School District / 8,201 |
| 92. | 0.9% | North Warren Regional School District / 12,879 |
| 92. | 0.9% | River Edge Borough School District / 11,199 |
| 95. | 0.9% | Northfield City School District / 8,559 |
| 95. | 0.9% | Denville Township School District / 16,535 |
| 97. | 0.8% | River Dell Regional School District / 19,135 |
| 98. | 0.8% | Westfield Town School District / 29,950 |
| 98. | 0.8% | Atlantic Highlands Borough School District / 4,442 |
| 98. | 0.8% | Toms River Regional School District / 108,546 |
| 98. | 0.8% | Manasquan Borough School District / 5,975 |
| 98. | 0.8% | Berkeley Township School District / 41,374 |
| 103. | 0.8% | Lacey Township School District / 27,469 |
| 103. | 0.8% | Englewood Cliffs Borough School District / 5,266 |
| 103. | 0.8% | Morris Township School District / 40,680 |
| 103. | 0.8% | Middletown Township School District / 66,709 |
| 103. | 0.8% | Scotch Plains-Fanwood Regional School District / 30,399 |
| 103. | 0.8% | Clinton Town School District / 4,607 |
| 103. | 0.8% | Longport Borough School District / 1,039 |
| 110. | 0.8% | Oradell Borough School District / 7,936 |
| 110. | 0.8% | Middlesex Borough School District / 13,652 |
| 112. | 0.8% | Dover Town School District / 19,964 |
| 112. | 0.8% | North Hunterdon-Voorhees Regional School District / 51,435 |
| 112. | 0.8% | New Hanover Township School District / 5,406 |
| 112. | 0.8% | Glen Ridge Borough School District / 7,441 |
| 116. | 0.8% | Rumson-Fair Haven Regional School District / 13,239 |
| 117. | 0.8% | Galloway Township School District / 36,547 |
| 117. | 0.8% | Morris Plains Borough School District / 5,558 |
| 117. | 0.8% | Hopewell Valley Regional School District / 21,734 |
| 120. | 0.8% | Kingsway Regional School District / 23,480 |
| 120. | 0.8% | Central Regional School District / 49,172 |
| 122. | 0.8% | Nutley Town School District / 28,020 |
| 122. | 0.8% | Tinton Falls Borough School District / 18,627 |
| 122. | 0.8% | Upper Saddle River Borough School District / 8,085 |
| 125. | 0.8% | Hopatcong Borough School District / 15,440 |
| 125. | 0.8% | The Chathams School District / 19,318 |
| 125. | 0.8% | Wharton Borough School District / 6,496 |
| 128. | 0.7% | Jackson Township School District / 53,115 |
| 128. | 0.7% | Oakland Borough School District / 12,642 |
| 128. | 0.7% | Califon Borough School District / 1,283 |
| 128. | 0.7% | Mansfield Township School District / 7,889 |
| 128. | 0.7% | Clinton Township School District / 13,519 |
| 133. | 0.7% | Allamuchy Township School District / 4,295 |
| 133. | 0.7% | Haddonfield Borough School District / 11,612 |
| 133. | 0.7% | Woodbury Heights Borough School District / 3,074 |
| 136. | 0.7% | Harrington Park Borough School District / 4,655 |
| 136. | 0.7% | Milltown Borough School District / 6,895 |
| 136. | 0.7% | Haworth Borough School District / 3,374 |
| 136. | 0.7% | Warren Township School District / 15,154 |
| 136. | 0.7% | Readington Township School District / 16,235 |
| 136. | 0.7% | Ewing Township School District / 35,843 |
| 142. | 0.7% | Alpha Borough School District / 2,490 |
| 142. | 0.7% | Lincoln Park Borough School District / 10,630 |
| 142. | 0.7% | Pompton Lakes Borough School District / 10,966 |
| 145. | 0.7% | Fair Lawn Borough School District / 32,147 |
| 146. | 0.7% | Pitman Borough School District / 9,154 |
| 146. | 0.7% | Haddon Township School District / 14,739 |
| 148. | 0.7% | Island Heights Borough School District / 1,386 |
| 148. | 0.7% | New Milford Borough School District / 16,260 |
| 148. | 0.7% | New Providence Borough School District / 12,018 |
| 151. | 0.7% | Blairstown Township School District / 7,595 |
| 151. | 0.7% | Branchburg Township School District / 14,483 |
| 153. | 0.7% | Bordentown Regional School District / 15,423 |
| 153. | 0.7% | Elsinboro Township School District / 1,182 |
| 153. | 0.7% | West Milford Township School District / 25,754 |
| 156. | 0.7% | West Long Branch Borough School District / 8,115 |
| 156. | 0.7% | Brick Township School District / 75,905 |
| 158. | 0.6% | Wayne Township School District / 54,337 |
| 158. | 0.6% | West Windsor-Plainsboro Regional School District / 48,781 |
| 160. | 0.6% | Ocean Gate Borough School District / 1,607 |
| 160. | 0.6% | Kittatinny Regional School District / 14,801 |
| 160. | 0.6% | Upper Freehold Regional School District / 8,263 |
| 163. | 0.6% | Garwood Borough School District / 4,175 |
| 164. | 0.6% | Brielle Borough School District / 4,795 |
| 164. | 0.6% | Millstone Township School District / 10,293 |
| 164. | 0.6% | Frenchtown Borough School District / 1,399 |
| 164. | 0.6% | South Orange-Maplewood School District / 39,953 |
| 168. | 0.6% | Hawthorne Borough School District / 18,574 |
| 168. | 0.6% | Elmwood Park Borough School District / 19,214 |
| 168. | 0.6% | Laurel Springs Borough School District / 2,157 |
| 168. | 0.6% | Hillsborough Township School District / 38,461 |
| 168. | 0.6% | Hillsdale Borough School District / 10,141 |
| 173. | 0.6% | Avon-by-the-Sea Borough School District / 2,097 |
| 173. | 0.6% | Millburn Township School District / 19,958 |
| 173. | 0.6% | Passaic Valley Regional School District / 36,079 |
| 173. | 0.6% | Jamesburg Borough School District / 5,882 |
| 177. | 0.6% | Stockton Borough School District / 536 |
| 178. | 0.6% | Rockaway Borough School District / 6,458 |
| 178. | 0.6% | Berlin Borough School District / 7,357 |
| 178. | 0.6% | Hamilton Township School District / 88,412 |
| 178. | 0.6% | Montague Township School District / 3,805 |
| 182. | 0.6% | Pennsauken Township School District / 35,929 |
| 182. | 0.6% | Weymouth Township School District / 2,666 |
| 182. | 0.6% | Green Township School District / 3,568 |
| 182. | 0.6% | Shamong Township School District / 6,558 |
| 186. | 0.6% | Parsippany-Troy Hills Township School District / 52,854 |
| 186. | 0.6% | Point Pleasant Beach Borough School District / 5,257 |
| 186. | 0.6% | Emerson Borough School District / 7,329 |
| 186. | 0.6% | Bridgewater-Raritan Regional School District / 51,048 |
| 186. | 0.6% | Tewksbury Township School District / 5,977 |
| 186. | 0.6% | Seaside Heights Borough School District / 2,967 |
| 186. | 0.6% | Westampton Township School District / 8,594 |
| 186. | 0.6% | Mainland Regional School District / 26,773 |
| 186. | 0.6% | Mount Olive Township School District / 27,482 |
| 195. | 0.5% | Linden City School District / 39,967 |
| 195. | 0.5% | Pohatcong Township School District / 3,396 |
| 195. | 0.5% | Ringwood Borough School District / 12,164 |
| 195. | 0.5% | Name N/A / 2,155,166 |
| 199. | 0.5% | Mendham Township School District / 5,825 |
| 199. | 0.5% | Lumberton Township School District / 12,275 |
| 201. | 0.5% | Colts Neck Township School District / 10,173 |
| 201. | 0.5% | Pascack Valley Regional School District / 33,073 |
| 201. | 0.5% | Ocean Township School District / 8,055 |
| 201. | 0.5% | Medford Lakes Borough School District / 4,179 |
| 205. | 0.5% | Mahwah Township School District / 25,422 |
| 205. | 0.5% | Riverton Borough School District / 2,806 |
| 205. | 0.5% | Franklin Lakes Borough School District / 10,506 |
| 205. | 0.5% | Monmouth Regional School District / 31,566 |
| 205. | 0.5% | Livingston Township School District / 28,810 |
| 205. | 0.5% | Hanover Park Regional School District / 36,348 |
| 205. | 0.5% | Deerfield Township School District / 3,086 |
| 205. | 0.5% | Lakewood Township School District / 87,681 |
| 213. | 0.5% | Port Republic City School District / 1,102 |
| 213. | 0.5% | Great Meadows Regional School District / 8,679 |
| 213. | 0.5% | Bloomingdale Borough School District / 7,581 |
| 213. | 0.5% | Southern Regional School District / 34,128 |
| 213. | 0.5% | Bogota Borough School District / 8,158 |
| 213. | 0.5% | Runnemede Borough School District / 8,487 |
| 219. | 0.5% | Manalapan-Englishtown Regional School District / 39,767 |
| 219. | 0.5% | Mount Holly Township School District / 9,831 |
| 219. | 0.5% | Roxbury Township School District / 23,388 |
| 219. | 0.5% | Garfield City School District / 30,190 |
| 223. | 0.5% | Hampton Township School District / 5,189 |
| 224. | 0.5% | Tabernacle Township School District / 7,039 |
| 224. | 0.5% | Red Bank Borough School District / 12,131 |
| 224. | 0.5% | Sparta Township School District / 19,642 |
| 224. | 0.5% | Stafford Township School District / 26,029 |
| 224. | 0.5% | Lyndhurst Township School District / 20,242 |
| 224. | 0.5% | Maple Shade Township School District / 19,270 |
| 224. | 0.5% | Hazlet Township School District / 20,540 |
| 224. | 0.5% | Hackettstown Town School District / 9,704 |
| 232. | 0.5% | Howell Township School District / 50,776 |
| 232. | 0.5% | Greenwich Township School District / 4,938 |
| 232. | 0.5% | Mendham Borough School District / 5,022 |
| 232. | 0.5% | Shore Regional School District / 18,656 |
| 232. | 0.5% | Cranford Township School District / 22,414 |
| 232. | 0.5% | White Township School District / 4,826 |
| 238. | 0.5% | Collingswood Borough School District / 14,024 |
| 238. | 0.5% | Harding Township School District / 3,758 |
| 238. | 0.5% | Marlboro Township School District / 39,424 |
| 238. | 0.5% | Greater Egg Harbor Regional School District / 72,698 |
| 238. | 0.5% | Fairfield Township School District / 7,369 |
| 243. | 0.4% | Moorestown Township School District / 20,577 |
| 243. | 0.4% | Netcong Borough School District / 3,247 |
| 243. | 0.4% | Union Township School District / 6,031 |
| 243. | 0.4% | Pine Hill Borough School District / 10,354 |
| 243. | 0.4% | Somerset Hills Regional School District / 11,062 |
| 248. | 0.4% | Waldwick Borough School District / 9,580 |
| 248. | 0.4% | Ridgefield Borough School District / 10,939 |
| 248. | 0.4% | Franklin Township School District / 16,744 |
| 248. | 0.4% | East Brunswick Township School District / 47,409 |
| 248. | 0.4% | Freehold Regional School District / 188,819 |
| 253. | 0.4% | Roseland Borough School District / 5,686 |
| 253. | 0.4% | Montgomery Township School District / 22,014 |
| 253. | 0.4% | Northern Highlands Regional School District / 14,574 |
| 256. | 0.4% | Midland Park Borough School District / 7,049 |
| 256. | 0.4% | Northern Valley Regional School District / 37,140 |
| 256. | 0.4% | Madison Borough School District / 15,846 |
| 256. | 0.4% | Hasbrouck Heights Borough School District / 11,742 |
| 256. | 0.4% | Somerville Borough School District / 12,188 |
| 256. | 0.4% | Evesham Township School District / 45,347 |
| 256. | 0.4% | Long Beach Island School District / 6,695 |
| 263. | 0.4% | Maurice River Township School District / 8,006 |
| 263. | 0.4% | Rancocas Valley Regional School District / 42,667 |
| 265. | 0.4% | Bradley Beach Borough School District / 4,395 |
| 265. | 0.4% | Clifton City School District / 82,776 |
| 265. | 0.4% | Lake Como Borough School District / 1,813 |
| 265. | 0.4% | Old Bridge Township School District / 64,489 |
| 265. | 0.4% | Dunellen Borough School District / 7,143 |
| 270. | 0.4% | Fort Lee Borough School District / 35,161 |
| 270. | 0.4% | West Essex Regional School District / 21,510 |
| 270. | 0.4% | Holland Township School District / 5,311 |
| 270. | 0.4% | Franklin Township School District / 3,143 |
| 270. | 0.4% | Greenwich Township School District / 878 |
| 275. | 0.4% | Dennis Township School District / 6,449 |
| 275. | 0.4% | Mantua Township School District / 15,183 |
| 275. | 0.4% | South Brunswick Township School District / 42,385 |
| 275. | 0.4% | East Windsor Regional School District / 32,292 |
| 275. | 0.4% | Caldwell-West Caldwell School District / 18,517 |
| 275. | 0.4% | Freehold Township School District / 35,430 |
| 281. | 0.4% | Manchester Township School District / 42,661 |
| 281. | 0.4% | Stillwater Township School District / 4,176 |
| 281. | 0.4% | Hoboken City School District / 47,384 |
| 281. | 0.4% | Burlington Township School District / 22,376 |
| 281. | 0.4% | Little Falls Township School District / 13,876 |
| 281. | 0.4% | Lakeland Regional School District / 23,055 |
| 281. | 0.4% | Woodstown-Pilesgrove Regional School District / 7,469 |
| 288. | 0.4% | Hillside Township School District / 21,275 |
| 288. | 0.4% | Roselle Park Borough School District / 13,179 |
| 288. | 0.4% | Ridgewood Village School District / 24,827 |
| 288. | 0.4% | Eastern Camden County Regional School District / 38,748 |
| 292. | 0.3% | Paramus Borough School District / 26,084 |
| 292. | 0.3% | Delsea Regional High School School District / 20,891 |
| 292. | 0.3% | Rumson Borough School District / 7,140 |
| 292. | 0.3% | East Greenwich Township School District / 8,909 |
| 292. | 0.3% | Franklin Township School District / 3,193 |
| 292. | 0.3% | Lawrence Township School District / 32,762 |
| 292. | 0.3% | Red Bank Regional School District / 21,889 |
| 292. | 0.3% | Haddon Heights Borough School District / 7,500 |
| 292. | 0.3% | South River Borough School District / 15,862 |
| 301. | 0.3% | Holmdel Township School District / 16,599 |
| 301. | 0.3% | Woodbridge Township School District / 99,115 |
| 301. | 0.3% | Woodcliff Lake Borough School District / 5,694 |
| 304. | 0.3% | Neptune Township School District / 27,925 |
| 304. | 0.3% | Voorhees Township School District / 29,050 |
| 304. | 0.3% | West Deptford Township School District / 21,446 |
| 304. | 0.3% | Piscataway Township School District / 55,000 |
| 304. | 0.3% | Wenonah Borough School District / 2,212 |
| 304. | 0.3% | Lenape Regional School District / 139,852 |
| 304. | 0.3% | Mountain Lakes Borough School District / 4,183 |
| 304. | 0.3% | Ridgefield Park Township School District / 12,690 |
| 304. | 0.3% | Neptune City School District / 4,916 |
| 304. | 0.3% | Sea Girt Borough School District / 1,951 |
| 314. | 0.3% | North Caldwell Borough School District / 6,359 |
| 314. | 0.3% | Woodbury City School District / 10,280 |
| 314. | 0.3% | Glassboro Borough School District / 18,811 |
| 314. | 0.3% | Magnolia Borough School District / 4,364 |
| 318. | 0.3% | Old Tappan Borough School District / 5,676 |
| 318. | 0.3% | Spring Lake Borough School District / 3,092 |
| 318. | 0.3% | Bound Brook Borough School District / 10,399 |
| 318. | 0.3% | Lower Township School District / 22,735 |
| 322. | 0.3% | Northern Burlington Regional School District / 29,599 |
| 322. | 0.3% | Deptford Township School District / 30,177 |
| 322. | 0.3% | Highland Park Borough School District / 13,990 |
| 322. | 0.3% | Edgewater Borough School District / 10,766 |
| 322. | 0.3% | Franklin Township School District / 60,354 |
| 322. | 0.3% | North Plainfield Borough School District / 21,932 |
| 322. | 0.3% | Winfield Township School District / 1,440 |
| 329. | 0.3% | North Haledon Borough School District / 8,186 |
| 329. | 0.3% | Demarest Borough School District / 4,850 |
| 329. | 0.3% | Lower Cape May Regional School District / 27,368 |
| 329. | 0.3% | Perth Amboy City School District / 50,182 |
| 329. | 0.3% | Hackensack City School District / 42,713 |
| 329. | 0.3% | Bay Head Borough School District / 1,159 |
| 329. | 0.3% | Barnegat Township School District / 20,073 |
| 329. | 0.3% | Monroe Township School District / 35,195 |
| 337. | 0.3% | Leonia Borough School District / 8,890 |
| 337. | 0.3% | Montclair Town School District / 37,639 |
| 337. | 0.3% | Little Silver Borough School District / 5,987 |
| 337. | 0.3% | Secaucus Town School District / 16,008 |
| 337. | 0.3% | Cape May City School District / 3,687 |
| 342. | 0.3% | Rutherford Borough School District / 17,970 |
| 342. | 0.3% | Lodi Borough School District / 23,970 |
| 342. | 0.3% | Hopewell Township School District / 5,167 |
| 342. | 0.3% | Bergenfield Borough School District / 26,517 |
| 342. | 0.3% | Spotswood Borough School District / 10,299 |
| 342. | 0.3% | Sayreville Borough School District / 42,279 |
| 342. | 0.3% | Estell Manor City School District / 1,650 |
| 342. | 0.3% | Andover Regional School District / 7,165 |
| 342. | 0.3% | Wall Township School District / 26,011 |
| 342. | 0.3% | Spring Lake Heights Borough School District / 4,810 |
| 352. | 0.3% | Dumont Borough School District / 17,386 |
| 352. | 0.3% | Cherry Hill Township School District / 70,963 |
| 352. | 0.3% | Harrison Town School District / 13,569 |
| 352. | 0.3% | South Harrison Township School District / 3,058 |
| 352. | 0.3% | Essex Fells Borough School District / 2,096 |
| 352. | 0.3% | Watchung Borough School District / 5,686 |
| 352. | 0.3% | Bayonne City School District / 62,027 |
| 359. | 0.2% | Ocean Township School District / 27,517 |
| 359. | 0.2% | South Hackensack Township School District / 2,260 |
| 359. | 0.2% | Teaneck Township School District / 39,481 |
| 359. | 0.2% | Burlington City School District / 9,953 |
| 359. | 0.2% | Folsom Borough School District / 1,740 |
| 359. | 0.2% | Gateway Regional School District / 12,769 |
| 359. | 0.2% | Monroe Township School District / 37,171 |
| 359. | 0.2% | Bethlehem Township School District / 3,978 |
| 359. | 0.2% | Palisades Park Borough School District / 19,065 |
| 368. | 0.2% | Edison Township School District / 99,557 |
| 368. | 0.2% | Springfield Township School District / 15,479 |
| 368. | 0.2% | Mount Laurel Township School District / 41,924 |
| 368. | 0.2% | Southampton Township School District / 10,547 |
| 368. | 0.2% | Middle Township School District / 18,374 |
| 368. | 0.2% | East Hanover Township School District / 11,232 |
| 368. | 0.2% | Washington Township School District / 49,014 |
| 368. | 0.2% | Phillipsburg Town School District / 15,197 |
| 376. | 0.2% | Millville City School District / 28,134 |
| 376. | 0.2% | Wallington Borough School District / 11,328 |
| 376. | 0.2% | South Bound Brook Borough School District / 4,566 |
| 376. | 0.2% | Rahway City School District / 26,968 |
| 380. | 0.2% | Mansfield Township School District / 7,998 |
| 380. | 0.2% | Clearview Regional School District / 27,049 |
| 380. | 0.2% | Glen Rock Borough School District / 11,545 |
| 380. | 0.2% | Saddle Brook Township School District / 13,487 |
| 380. | 0.2% | Keyport Borough School District / 7,312 |
| 380. | 0.2% | Wood-Ridge Borough School District / 7,572 |
| 386. | 0.2% | Egg Harbor Township School District / 41,397 |
| 386. | 0.2% | Barrington Borough School District / 7,021 |
| 386. | 0.2% | Carteret Borough School District / 22,445 |
| 386. | 0.2% | Freehold Borough School District / 11,910 |
| 390. | 0.2% | Medford Township School District / 23,084 |
| 390. | 0.2% | Little Egg Harbor Township School District / 19,480 |
| 390. | 0.2% | Riverdale Borough School District / 3,372 |
| 390. | 0.2% | Springfield Township School District / 3,414 |
| 390. | 0.2% | Bellmawr Borough School District / 11,612 |
| 395. | 0.2% | Cliffside Park Borough School District / 23,365 |
| 395. | 0.2% | Butler Borough School District / 7,515 |
| 397. | 0.2% | Englewood City School District / 26,828 |
| 397. | 0.2% | Absecon City School District / 8,357 |
| 397. | 0.2% | Pemberton Township School District / 29,465 |
| 397. | 0.2% | Hamilton Township School District / 25,643 |
| 397. | 0.2% | Plumsted Township School District / 8,283 |
| 402. | 0.2% | Cumberland Regional School District / 24,551 |
| 402. | 0.2% | Union Township School District / 55,734 |
| 402. | 0.2% | Bridgeton City School District / 25,042 |
| 402. | 0.2% | West Orange Town School District / 45,742 |
| 402. | 0.2% | Matawan-Aberdeen Regional School District / 26,892 |
| 407. | 0.2% | Pinelands Regional School District / 25,816 |
| 407. | 0.2% | Boonton Town School District / 8,405 |
| 407. | 0.2% | Wanaque Borough School District / 10,891 |
| 407. | 0.2% | Pittsgrove Township School District / 9,337 |
| 407. | 0.2% | Passaic County Manchester Regional School District / 22,264 |
| 407. | 0.2% | New Brunswick City School District / 53,933 |
| 407. | 0.2% | Bass River Township School District / 1,465 |
| 407. | 0.2% | Black Horse Pike Regional School District / 84,586 |
| 407. | 0.2% | Hainesport Township School District / 5,809 |
| 416. | 0.1% | Eatontown Borough School District / 12,939 |
| 416. | 0.1% | East Rutherford Borough School District / 8,829 |
| 416. | 0.1% | River Vale Township School District / 9,575 |
| 416. | 0.1% | Edgewater Park Township School District / 8,744 |
| 420. | 0.1% | Jersey City School District / 243,257 |
| 420. | 0.1% | Washington Borough School District / 6,591 |
| 420. | 0.1% | Maywood Borough School District / 9,503 |
| 420. | 0.1% | Asbury Park City School District / 16,275 |
| 420. | 0.1% | Winslow Township School District / 38,569 |
| 425. | 0.1% | Ventnor City City School District / 11,151 |
| 425. | 0.1% | Audubon Borough School District / 9,947 |
| 425. | 0.1% | Tenafly Borough School District / 14,276 |
| 425. | 0.1% | Florence Township School District / 11,984 |
| 429. | 0.1% | Fairfield Township School District / 6,354 |
| 429. | 0.1% | Haledon Borough School District / 8,245 |
| 429. | 0.1% | Margate City School District / 6,763 |
| 432. | 0.1% | Robbinsville Township School District / 13,016 |
| 432. | 0.1% | Pequannock Township School District / 15,245 |
| 432. | 0.1% | Park Ridge Borough School District / 8,615 |
| 432. | 0.1% | Gloucester Township School District / 64,487 |
| 432. | 0.1% | Cedar Grove Township School District / 12,312 |
| 432. | 0.1% | Keansburg Borough School District / 10,227 |
| 432. | 0.1% | Vineland City School District / 59,908 |
| 432. | 0.1% | Summit City School District / 21,217 |
| 432. | 0.1% | Fairview Borough School District / 13,656 |
| 432. | 0.1% | Weehawken Township School District / 12,605 |
| 432. | 0.1% | Buena Regional School District / 12,127 |
| 432. | 0.1% | North Bergen Township School District / 59,560 |
| 432. | 0.1% | Roselle Borough School District / 20,955 |
| 445. | 0.1% | Bloomfield Township School District / 47,102 |
| 445. | 0.1% | Cranbury Township School District / 3,753 |
| 445. | 0.1% | Elizabeth City School District / 123,176 |
| 448. | 0.1% | Somers Point City School District / 11,038 |
| 448. | 0.1% | Carlstadt-East Rutherford School District / 14,889 |
| 448. | 0.1% | Sterling High School Dist School District / 16,649 |
| 448. | 0.1% | North Arlington Borough School District / 15,271 |
| 452. | 0.1% | Camden City School District / 78,047 |
| 452. | 0.1% | West New York Town School District / 48,401 |
| 452. | 0.1% | Lindenwold Borough School District / 17,601 |
| 452. | 0.1% | Atlantic City School District / 40,081 |
| 452. | 0.1% | Trenton City School District / 85,181 |
| 457. | 0.1% | Union City School District / 65,766 |
| 457. | 0.1% | Long Branch City School District / 30,855 |
| 457. | 0.1% | Belleville Town School District / 35,748 |
| 460. | 0.1% | Passaic City School District / 68,982 |
| 460. | 0.1% | Willingboro Township School District / 32,168 |
| 460. | 0.1% | Kearny Town School District / 40,208 |
| 463. | 0.0% | South Hunterdon Regional School District / 8,075 |
| 463. | 0.0% | North Brunswick Township School District / 39,920 |
| 465. | 0.0% | East Orange City School District / 64,927 |
| 465. | 0.0% | Plainfield City School District / 49,043 |
| 467. | 0.0% | Paterson City School District / 145,836 |
| 467. | 0.0% | Irvington Township School District / 54,833 |
| 469. | 0.0% | Newark City School District / 274,674 |
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.
