| Rank | Welsh as First Ancestry Population Percentage ▼ | School District / Population |
| 1. | 10.7% | Yarnell Elementary District / 1,088 |
| 2. | 9.1% | San Fernando Elementary District / 49 |
| 3. | 7.7% | Klondyke Elementary District / 69 |
| 4. | 7.2% | Concho Elementary District / 2,169 |
| 5. | 5.2% | Quartzsite Elementary District / 5,093 |
| 6. | 4.8% | Joseph City Unified District / 1,845 |
| 7. | 4.0% | Hackberry School District / 1,023 |
| 8. | 3.9% | San Simon Unified District / 760 |
| 9. | 3.8% | Tonto Basin Elementary District / 911 |
| 10. | 3.7% | Seligman Unified District / 711 |
| 11. | 3.5% | Snowflake Unified District / 11,920 |
| 12. | 3.3% | Bicentennial Union High School District / 8,635 |
| 13. | 3.2% | Alpine Elementary District / 482 |
| 14. | 3.2% | Miami Unified District / 8,456 |
| 15. | 3.0% | Heber-Overgaard Unified District / 3,833 |
| 16. | 2.7% | Clarkdale-Jerome Elementary District / 3,640 |
| 17. | 2.4% | Congress Elementary District / 2,074 |
| 18. | 2.4% | Pine Strawberry Elementary District / 2,928 |
| 19. | 2.3% | Fredonia-Moccasin Unified District / 2,300 |
| 19. | 2.3% | Show Low Unified District / 15,662 |
| 21. | 2.3% | Yucca Elementary District / 380 |
| 22. | 2.2% | Vernon Elementary District / 1,216 |
| 23. | 2.1% | Flowing Wells Unified District / 28,288 |
| 24. | 1.9% | Oracle Elementary District / 12,449 |
| 25. | 1.9% | Owens-Whitney Elementary District / 694 |
| 26. | 1.8% | Double Adobe Elementary District / 653 |
| 27. | 1.7% | Page Unified District / 12,933 |
| 28. | 1.6% | Clifton Unified District / 2,315 |
| 29. | 1.5% | Valentine Elementary District / 204 |
| 29. | 1.5% | Cave Creek Unified District / 51,324 |
| 31. | 1.5% | Littlefield Unified District / 2,292 |
| 32. | 1.4% | Mingus Union High School District / 33,568 |
| 33. | 1.4% | Holbrook Unified District / 10,015 |
| 34. | 1.4% | Name N/A / 70,450 |
| 35. | 1.3% | Chevelon Butte School District / 377 |
| 35. | 1.3% | Prescott Unified District / 56,597 |
| 37. | 1.3% | Continental Elementary District / 24,722 |
| 37. | 1.3% | Tanque Verde Unified District / 11,834 |
| 39. | 1.3% | Douglas Unified District / 21,034 |
| 40. | 1.3% | Cottonwood-Oak Creek Elementary District / 29,928 |
| 40. | 1.3% | Apache Junction Unified District / 55,907 |
| 42. | 1.2% | Round Valley Unified District / 9,599 |
| 43. | 1.2% | Lake Havasu Unified District / 55,024 |
| 44. | 1.2% | Wickenburg Unified District / 9,856 |
| 45. | 1.2% | Marana Unified District / 82,156 |
| 46. | 1.2% | Catalina Foothills Unified District / 32,492 |
| 46. | 1.2% | Payson Unified District / 20,796 |
| 48. | 1.2% | Palominas Elementary District / 10,293 |
| 49. | 1.2% | Hyder Elementary District / 483 |
| 49. | 1.2% | Kingman Unified School District / 67,408 |
| 51. | 1.2% | Amphitheater Unified District / 135,450 |
| 52. | 1.2% | Ash Creek Elementary District / 1,010 |
| 52. | 1.2% | Deer Valley Unified District / 226,328 |
| 54. | 1.1% | Tempe School District / 145,015 |
| 55. | 1.1% | Humboldt Unified District / 50,150 |
| 56. | 1.1% | Madison Elementary District / 56,072 |
| 56. | 1.1% | Higley Unified District / 56,902 |
| 58. | 1.1% | Tempe Union High School District / 301,204 |
| 58. | 1.1% | Chino Valley Unified District / 21,325 |
| 60. | 1.1% | Williamson Valley Elementary School District / 510 |
| 61. | 1.1% | Flagstaff Unified District / 92,821 |
| 61. | 1.1% | Sierra Vista Unified District / 48,373 |
| 63. | 1.1% | Kyrene Elementary District / 156,189 |
| 64. | 1.0% | McNeal Elementary District / 322 |
| 65. | 1.0% | Salome Consolidated Elementary District / 1,754 |
| 66. | 1.0% | Litchfield Elementary District / 67,870 |
| 66. | 1.0% | Liberty Elementary District / 22,097 |
| 68. | 1.0% | Ajo Unified District / 3,206 |
| 68. | 1.0% | Mohave Valley Elementary District / 22,586 |
| 70. | 0.9% | Topock Elementary District / 2,495 |
| 70. | 0.9% | Parker Unified School District / 11,914 |
| 72. | 0.9% | Sedona-Oak Creek Joint Unified District / 14,848 |
| 73. | 0.9% | Peoria Unified School District / 200,819 |
| 73. | 0.9% | Colorado City Unified District / 5,626 |
| 75. | 0.9% | Scottsdale Unified District / 224,296 |
| 76. | 0.9% | Mesa Unified District / 455,981 |
| 77. | 0.9% | Bisbee Unified District / 7,480 |
| 78. | 0.8% | Toltec Elementary District / 7,931 |
| 78. | 0.8% | Mayer Unified District / 5,470 |
| 78. | 0.8% | Benson Unified School District / 7,886 |
| 78. | 0.8% | Maricopa Unified School District / 38,331 |
| 82. | 0.8% | Paradise Valley Unified District / 243,065 |
| 82. | 0.8% | Pima Unified District / 3,577 |
| 82. | 0.8% | Maine Consolidated School District / 980 |
| 85. | 0.8% | Gilbert Unified District / 184,009 |
| 85. | 0.8% | Yuma Elementary District / 101,737 |
| 87. | 0.8% | Empire Elementary District / 287 |
| 88. | 0.8% | Tucson Unified District / 478,354 |
| 89. | 0.8% | Fountain Hills Unified District / 22,808 |
| 90. | 0.8% | Vail Unified District / 46,202 |
| 91. | 0.7% | Sahuarita Unified District / 24,247 |
| 92. | 0.7% | Agua Fria Union High School District / 109,987 |
| 93. | 0.7% | Saddle Mountain Unified School District / 6,226 |
| 94. | 0.7% | Patagonia Elementary District / 1,056 |
| 94. | 0.7% | Safford Unified District / 15,772 |
| 96. | 0.7% | Bonita Elementary District / 1,409 |
| 96. | 0.7% | Chandler Unified District / 209,740 |
| 96. | 0.7% | Florence Unified School District / 61,510 |
| 99. | 0.6% | Washington Elementary District / 235,329 |
| 100. | 0.6% | Colorado River Union High School District / 65,407 |
| 101. | 0.6% | Red Rock Elementary District / 1,616 |
| 102. | 0.6% | Buckeye Union High School District / 60,839 |
| 103. | 0.6% | Name N/A / 2,100,636 |
| 104. | 0.6% | Fort Huachuca Accommodation District / 5,520 |
| 105. | 0.6% | Queen Creek Unified District / 22,117 |
| 106. | 0.5% | Yuma Union High School District / 185,507 |
| 106. | 0.5% | Tolleson Elementary District / 15,052 |
| 106. | 0.5% | Winslow Unified District / 11,869 |
| 106. | 0.5% | Osborn Elementary District / 40,522 |
| 110. | 0.5% | Glendale Union High School District / 334,441 |
| 111. | 0.5% | Dysart Unified District / 145,205 |
| 111. | 0.5% | Casa Grande Elementary District / 56,034 |
| 113. | 0.5% | Laveen Elementary District / 37,384 |
| 113. | 0.5% | Valley Union High School District / 4,726 |
| 113. | 0.5% | Hayden-Winkelman Unified District / 1,620 |
| 116. | 0.5% | Casa Grande Union High School District / 75,661 |
| 116. | 0.5% | Pearce Elementary District / 2,371 |
| 116. | 0.5% | Coolidge Unified District / 31,828 |
| 119. | 0.4% | Nadaburg Unified School District / 6,826 |
| 119. | 0.4% | Tombstone Unified District / 7,000 |
| 121. | 0.4% | Crane Elementary District / 42,756 |
| 121. | 0.4% | Palo Verde Elementary District / 2,091 |
| 121. | 0.4% | Bullhead City School District / 40,326 |
| 121. | 0.4% | Blue Ridge Unified District / 15,791 |
| 121. | 0.4% | Santa Cruz Valley Unified District / 19,992 |
| 126. | 0.4% | Buckeye Elementary District / 35,305 |
| 126. | 0.4% | Superior Unified School District / 3,050 |
| 128. | 0.4% | Creighton Elementary District / 65,314 |
| 128. | 0.4% | Duncan Unified District / 2,429 |
| 128. | 0.4% | Pendergast Elementary District / 69,806 |
| 131. | 0.4% | Balsz Elementary District / 27,027 |
| 131. | 0.4% | Littleton Elementary District / 33,522 |
| 131. | 0.4% | Thatcher Unified District / 6,896 |
| 134. | 0.4% | Morristown Elementary District / 1,526 |
| 135. | 0.3% | Globe Unified District / 10,892 |
| 135. | 0.3% | Mammoth-San Manuel Unified District / 5,822 |
| 137. | 0.3% | Phoenix Union High School District / 646,527 |
| 137. | 0.3% | Tolleson Union High School District / 160,531 |
| 139. | 0.3% | Picacho Elementary District / 5,542 |
| 139. | 0.3% | Williams Unified District / 5,203 |
| 141. | 0.3% | Wilson Elementary District / 3,810 |
| 141. | 0.3% | Solomon Elementary District / 3,148 |
| 143. | 0.3% | J. O. Combs Unified School District / 24,628 |
| 143. | 0.3% | Camp Verde Unified District / 11,405 |
| 145. | 0.3% | Phoenix Elementary District / 53,279 |
| 145. | 0.3% | Willcox Unified District / 7,524 |
| 145. | 0.3% | Patagonia Union High School District / 2,263 |
| 148. | 0.3% | Avondale Elementary District / 42,117 |
| 149. | 0.3% | Glendale Elementary District / 99,112 |
| 150. | 0.3% | Beaver Creek Elementary District / 4,178 |
| 151. | 0.3% | Alhambra Elementary District / 86,740 |
| 152. | 0.2% | Chinle Unified District / 18,033 |
| 152. | 0.2% | Ray Unified District / 4,266 |
| 154. | 0.2% | Roosevelt Elementary District / 96,847 |
| 155. | 0.2% | Nogales Unified District / 22,620 |
| 156. | 0.2% | Santa Cruz Valley Union High School District / 15,845 |
| 156. | 0.2% | Altar Valley Elementary District / 5,999 |
| 158. | 0.1% | Sunnyside Unified District / 84,832 |
| 158. | 0.1% | Fowler Elementary District / 27,583 |
| 160. | 0.1% | Cartwright Elementary District / 113,306 |
| 160. | 0.1% | Indian Oasis-Baboquivari Unified District / 5,896 |
| 162. | 0.1% | Antelope Union High School District / 5,019 |
| 163. | 0.1% | Sanders Unified District / 6,028 |
| 164. | 0.1% | Isaac Elementary District / 43,403 |
| 165. | 0.0% | Somerton Elementary District / 19,194 |
| 165. | 0.0% | Murphy Elementary District / 16,094 |
Please note that we only rank locations with 'Welsh as First Ancestry Population Percentage' data. The rank above might not be a complete list. Locations without 'Welsh 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.
