| Rank | Volcano Index ▼ | School District / Population |
| 1. | 0.0303 | Flagstaff Unified District / 93,120 |
| 2. | 0.0239 | Colorado City Unified District / 6,301 |
| 3. | 0.0145 | Littlefield Unified District / 3,636 |
| 4. | 0.0123 | Fredonia-Moccasin Unified District / 3,162 |
| 5. | 0.0085 | Maine Consolidated School District / 1,543 |
| 6. | 0.0081 | Gadsden Elementary District / 28,694 |
| 7. | 0.0065 | Somerton Elementary District / 22,334 |
| 8. | 0.0061 | Grand Canyon Unified District / 1,707 |
| 9. | 0.0056 | Williams Unified District / 5,464 |
| 10. | 0.0055 | Crane Elementary District / 43,440 |
| 11. | 0.0050 | Yuma Union High School District / 195,266 |
| 12. | 0.0045 | Yuma Elementary District / 100,798 |
| 13. | 0.0044 | Sedona-Oak Creek Joint Unified District / 14,547 |
| 14. | 0.0039 | Page Unified District / 13,337 |
| 15. | 0.0038 | Ash Fork Joint Unified District / 2,031 |
| 16. | 0.0035 | Wellton Elementary District / 4,071 |
| 17. | 0.0030 | Beaver Creek Elementary District / 5,652 |
| 18. | 0.0030 | Cottonwood-Oak Creek Elementary District / 30,677 |
| 19. | 0.0030 | Mingus Union High School District / 34,444 |
| 20. | 0.0030 | Seligman Unified District / 1,197 |
| 21. | 0.0030 | Antelope Union High School District / 6,187 |
| 22. | 0.0029 | Mohawk Valley Elementary District / 1,677 |
| 23. | 0.0029 | Winslow Unified District / 11,733 |
| 24. | 0.0029 | Clarkdale-Jerome Elementary District / 3,767 |
| 25. | 0.0026 | Ajo Unified District / 3,787 |
| 26. | 0.0026 | Tuba City Unified District / 16,926 |
| 27. | 0.0024 | Camp Verde Unified District / 11,295 |
| 28. | 0.0021 | Chevelon Butte School District / 542 |
| 29. | 0.0021 | Chino Valley Unified District / 21,274 |
| 30. | 0.0020 | Peach Springs Unified District / 1,103 |
| 31. | 0.0019 | Pine Strawberry Elementary District / 1,604 |
| 32. | 0.0019 | Joseph City Unified District / 1,637 |
| 33. | 0.0019 | Humboldt Unified District / 52,054 |
| 34. | 0.0019 | Valentine Elementary District / 320 |
| 35. | 0.0018 | Cedar Unified District / 8,026 |
| 36. | 0.0016 | Hyder Elementary District / 439 |
| 37. | 0.0016 | Hackberry School District / 1,223 |
| 38. | 0.0016 | Prescott Unified District / 55,352 |
| 39. | 0.0016 | Mohave Valley Elementary District / 20,894 |
| 40. | 0.0016 | Williamson Valley Elementary School District / 506 |
| 41. | 0.0016 | Mayer Unified District / 5,602 |
| 42. | 0.0015 | Colorado River Union High School District / 63,402 |
| 43. | 0.0015 | Payson Unified District / 21,510 |
| 44. | 0.0015 | Topock Elementary District / 2,525 |
| 45. | 0.0015 | St. Johns Unified District / 3,929 |
| 46. | 0.0015 | Bullhead City School District / 39,983 |
| 47. | 0.0015 | Holbrook Unified District / 10,570 |
| 48. | 0.0014 | Lake Havasu Unified District / 55,833 |
| 49. | 0.0014 | Pinon Unified District / 6,729 |
| 50. | 0.0014 | Heber-Overgaard Unified District / 3,969 |
| 51. | 0.0014 | Sanders Unified District / 6,436 |
| 52. | 0.0013 | Skull Valley Elementary District / 600 |
| 53. | 0.0013 | Paloma School District / 296 |
| 54. | 0.0013 | Kingman Unified School District / 68,561 |
| 55. | 0.0013 | Sentinel Elementary District / 111 |
| 56. | 0.0013 | Window Rock Unified District / 12,438 |
| 57. | 0.0013 | Indian Oasis-Baboquivari Unified District / 6,666 |
| 58. | 0.0013 | Parker Unified School District / 10,263 |
| 59. | 0.0012 | Gila Bend Unified District / 2,610 |
| 60. | 0.0012 | Kirkland Elementary District / 1,276 |
| 61. | 0.0012 | Canon Elementary District / 2,661 |
| 62. | 0.0012 | Crown King Elementary District / 111 |
| 63. | 0.0012 | Young Elementary School District / 603 |
| 64. | 0.0012 | Quartzsite Elementary District / 5,634 |
| 65. | 0.0012 | Round Valley Unified District / 8,073 |
| 66. | 0.0011 | Alpine Elementary District / 401 |
| 67. | 0.0011 | Yucca Elementary District / 487 |
| 68. | 0.0011 | Walnut Grove Elementary District / 73 |
| 69. | 0.0000 | Arlington Elementary District / 1,335 |
| 69. | 0.0000 | J. O. Combs Unified School District / 38,281 |
| 69. | 0.0000 | Clifton Unified District / 2,909 |
| 69. | 0.0000 | Ash Creek Elementary District / 591 |
| 69. | 0.0000 | Kayenta Unified District / 9,909 |
| 69. | 0.0000 | Flowing Wells Unified District / 29,583 |
| 69. | 0.0000 | Globe Unified District / 10,541 |
| 69. | 0.0000 | Blue Elementary District / 46 |
| 69. | 0.0000 | Catalina Foothills Unified District / 30,821 |
| 69. | 0.0000 | Dysart Unified District / 169,324 |
| 69. | 0.0000 | Duncan Unified District / 2,767 |
| 69. | 0.0000 | Douglas Unified District / 22,014 |
| 69. | 0.0000 | Coolidge Unified District / 37,433 |
| 69. | 0.0000 | Chinle Unified District / 20,277 |
| 69. | 0.0000 | Florence Unified School District / 75,228 |
| 69. | 0.0000 | Fountain Hills Unified District / 23,488 |
| 69. | 0.0000 | Higley Unified District / 69,496 |
| 69. | 0.0000 | Hayden-Winkelman Unified District / 1,275 |
| 69. | 0.0000 | Avondale Elementary District / 49,323 |
| 69. | 0.0000 | Gilbert Unified District / 192,279 |
| 69. | 0.0000 | Ganado Unified District / 7,714 |
| 69. | 0.0000 | Fort Thomas Unified District / 5,401 |
| 69. | 0.0000 | Fort Huachuca Accommodation District / 5,743 |
| 69. | 0.0000 | Balsz Elementary District / 29,647 |
| 69. | 0.0000 | Chandler Unified District / 231,764 |
| 69. | 0.0000 | Mesa Unified District / 468,084 |
| 69. | 0.0000 | Sunnyside Unified District / 91,086 |
| 69. | 0.0000 | St. David Unified District / 4,220 |
| 69. | 0.0000 | Snowflake Unified District / 12,166 |
| 69. | 0.0000 | Deer Valley Unified District / 243,403 |
| 69. | 0.0000 | Show Low Unified District / 15,516 |
| 69. | 0.0000 | Alhambra Elementary District / 88,563 |
| 69. | 0.0000 | Scottsdale Unified District / 226,958 |
| 69. | 0.0000 | Santa Cruz Valley Unified District / 20,263 |
| 69. | 0.0000 | Superior Unified School District / 3,278 |
| 69. | 0.0000 | Tanque Verde Unified District / 11,845 |
| 69. | 0.0000 | Thatcher Unified District / 7,358 |
| 69. | 0.0000 | Salome Consolidated Elementary District / 2,899 |
| 69. | 0.0000 | Vernon Elementary District / 1,926 |
| 69. | 0.0000 | Willcox Unified District / 7,579 |
| 69. | 0.0000 | Wickenburg Unified District / 11,718 |
| 69. | 0.0000 | Whiteriver Unified District / 12,202 |
| 69. | 0.0000 | Vail Unified District / 54,562 |
| 69. | 0.0000 | Tucson Unified District / 477,922 |
| 69. | 0.0000 | Tombstone Unified District / 7,646 |
| 69. | 0.0000 | San Simon Unified District / 758 |
| 69. | 0.0000 | Sahuarita Unified District / 27,400 |
| 69. | 0.0000 | Apache Elementary District / 132 |
| 69. | 0.0000 | Nogales Unified District / 21,898 |
| 69. | 0.0000 | Nadaburg Unified School District / 8,546 |
| 69. | 0.0000 | Aguila Elementary District / 1,157 |
| 69. | 0.0000 | Morenci Unified District / 3,028 |
| 69. | 0.0000 | Miami Unified District / 8,468 |
| 69. | 0.0000 | Maricopa Unified School District / 49,568 |
| 69. | 0.0000 | Marana Unified District / 89,418 |
| 69. | 0.0000 | Paradise Valley Unified District / 251,892 |
| 69. | 0.0000 | Peoria Unified School District / 218,476 |
| 69. | 0.0000 | Pima Unified District / 3,424 |
| 69. | 0.0000 | Safford Unified District / 15,991 |
| 69. | 0.0000 | Saddle Mountain Unified School District / 8,320 |
| 69. | 0.0000 | Buckeye Union High School District / 67,494 |
| 69. | 0.0000 | San Carlos Unified District / 5,591 |
| 69. | 0.0000 | Red Mesa Unified District / 7,761 |
| 69. | 0.0000 | Ray Unified District / 3,676 |
| 69. | 0.0000 | Queen Creek Unified District / 28,951 |
| 69. | 0.0000 | Blue Ridge Unified District / 14,337 |
| 69. | 0.0000 | Mammoth-San Manuel Unified District / 6,097 |
| 69. | 0.0000 | Sacaton Elementary District / 7,465 |
| 69. | 0.0000 | Pearce Elementary District / 2,017 |
| 69. | 0.0000 | Patagonia Elementary District / 1,362 |
| 69. | 0.0000 | Palominas Elementary District / 10,560 |
| 69. | 0.0000 | Palo Verde Elementary District / 2,145 |
| 69. | 0.0000 | Tonto Basin Elementary District / 1,647 |
| 69. | 0.0000 | Owens-Whitney Elementary District / 628 |
| 69. | 0.0000 | Osborn Elementary District / 38,505 |
| 69. | 0.0000 | Oracle Elementary District / 13,855 |
| 69. | 0.0000 | Pendergast Elementary District / 68,925 |
| 69. | 0.0000 | Phoenix Elementary District / 54,631 |
| 69. | 0.0000 | Rucker Elementary District / 33 |
| 69. | 0.0000 | Roosevelt Elementary District / 105,099 |
| 69. | 0.0000 | Riverside Elementary District / 6,837 |
| 69. | 0.0000 | Redington Elementary District / 94 |
| 69. | 0.0000 | Red Rock Elementary District / 3,067 |
| 69. | 0.0000 | Pomerene Elementary District / 1,106 |
| 69. | 0.0000 | Double Adobe Elementary District / 632 |
| 69. | 0.0000 | Picacho Elementary District / 8,001 |
| 69. | 0.0000 | Naco Elementary District / 1,547 |
| 69. | 0.0000 | Murphy Elementary District / 13,666 |
| 69. | 0.0000 | Morristown Elementary District / 1,485 |
| 69. | 0.0000 | Laveen Elementary District / 44,709 |
| 69. | 0.0000 | Kyrene Elementary District / 154,506 |
| 69. | 0.0000 | Klondyke Elementary District / 49 |
| 69. | 0.0000 | Isaac Elementary District / 43,040 |
| 69. | 0.0000 | Glendale Elementary District / 99,031 |
| 69. | 0.0000 | Elfrida Elementary District / 910 |
| 69. | 0.0000 | Fowler Elementary District / 32,062 |
| 69. | 0.0000 | Empire Elementary District / 505 |
| 69. | 0.0000 | Liberty Elementary District / 24,826 |
| 69. | 0.0000 | Litchfield Elementary District / 79,438 |
| 69. | 0.0000 | Creighton Elementary District / 66,503 |
| 69. | 0.0000 | Mobile Elementary District / 74 |
| 69. | 0.0000 | McNeal Elementary District / 1,403 |
| 69. | 0.0000 | McNary Elementary District / 543 |
| 69. | 0.0000 | Altar Valley Elementary District / 7,069 |
| 69. | 0.0000 | Eagle Elementary District / 50 |
| 69. | 0.0000 | Madison Elementary District / 56,191 |
| 69. | 0.0000 | Littleton Elementary District / 41,072 |
| 69. | 0.0000 | Eloy Elementary District / 6,644 |
| 69. | 0.0000 | Bonita Elementary District / 1,265 |
| 69. | 0.0000 | Cartwright Elementary District / 119,571 |
| 69. | 0.0000 | Valley Union High School District / 3,518 |
| 69. | 0.0000 | Tolleson Union High School District / 173,006 |
| 69. | 0.0000 | Tempe Union High School District / 303,177 |
| 69. | 0.0000 | Santa Cruz Valley Union High School District / 17,712 |
| 69. | 0.0000 | Phoenix Union High School District / 670,209 |
| 69. | 0.0000 | Patagonia Union High School District / 3,163 |
| 69. | 0.0000 | Casa Grande Elementary District / 62,832 |
| 69. | 0.0000 | Cave Creek Unified District / 55,010 |
| 69. | 0.0000 | Benson Unified School District / 7,238 |
| 69. | 0.0000 | Sierra Vista Unified District / 49,181 |
| 69. | 0.0000 | Bowie Unified District / 463 |
| 69. | 0.0000 | Bisbee Unified District / 6,705 |
| 69. | 0.0000 | Bagdad Unified School District / 2,432 |
| 69. | 0.0000 | Bouse Elementary District / 811 |
| 69. | 0.0000 | Apache Junction Unified District / 56,829 |
| 69. | 0.0000 | Amphitheater Unified District / 134,383 |
| 69. | 0.0000 | Buckeye Elementary District / 39,188 |
| 69. | 0.0000 | Glendale Union High School District / 328,488 |
| 69. | 0.0000 | Casa Grande Union High School District / 88,203 |
| 69. | 0.0000 | Cochise Elementary District / 220 |
| 69. | 0.0000 | Toltec Elementary District / 13,148 |
| 69. | 0.0000 | Tolleson Elementary District / 15,837 |
| 69. | 0.0000 | Hillside Elementary District / 139 |
| 69. | 0.0000 | Tempe School District / 148,671 |
| 69. | 0.0000 | Stanfield Elementary District / 4,758 |
| 69. | 0.0000 | Sonoita Elementary District / 1,801 |
| 69. | 0.0000 | Solomon Elementary District / 3,823 |
| 69. | 0.0000 | Santa Cruz Elementary District / 1,926 |
| 69. | 0.0000 | Union Elementary District / 15,110 |
| 69. | 0.0000 | Washington Elementary District / 229,457 |
| 69. | 0.0000 | Bicentennial Union High School District / 10,085 |
| 69. | 0.0000 | Concho Elementary District / 2,644 |
| 69. | 0.0000 | Agua Fria Union High School District / 128,761 |
| 69. | 0.0000 | Congress Elementary District / 1,631 |
| 69. | 0.0000 | Yarnell Elementary District / 1,211 |
| 69. | 0.0000 | Wilson Elementary District / 3,247 |
| 69. | 0.0000 | Wenden Elementary District / 741 |
| 69. | 0.0000 | Continental Elementary District / 27,303 |
| 69. | 0.0000 | San Fernando Elementary District / 55 |
Please note that we only rank locations with 'Volcano Index' data. The rank above might not be a complete list. Locations without 'Volcano Index' data are not listed.
