| Rank | Air Quality Index ▼ | School District / Population |
| 1. | 63.6 | Sevier County School District / 92,561 |
| 2. | 56.0 | Alcoa City School District / 8,178 |
| 3. | 55.5 | Knox County School District / 440,732 |
| 4. | 55.1 | Monroe County School District / 32,998 |
| 5. | 53.7 | Lenoir City School District / 8,769 |
| 6. | 53.5 | Anderson County School District / 39,180 |
| 6. | 53.5 | Clinton City Elementary School District / 9,874 |
| 6. | 53.5 | Anderson County School District in Clinton / 9,874 |
| 9. | 53.5 | Loudon County School District / 40,980 |
| 10. | 53.4 | Sweetwater City School District / 12,004 |
| 10. | 53.4 | Monroe County School District in Sweetwater / 12,004 |
| 10. | 53.4 | Jefferson County School District / 52,166 |
| 10. | 53.4 | Union County School District / 19,139 |
| 14. | 53.2 | Blount County School District / 88,700 |
| 15. | 52.9 | Maryville City School District / 27,557 |
| 16. | 52.7 | Oak Ridge City School District / 29,301 |
| 17. | 52.5 | Hamblen County School District / 62,863 |
| 18. | 52.4 | Grainger County School District / 22,724 |
| 18. | 52.4 | Morgan County School District / 21,866 |
| 20. | 52.0 | Newport City Elementary School District / 6,890 |
| 20. | 52.0 | Cocke County School District in Newport / 6,890 |
| 22. | 51.9 | Roane County School District / 50,404 |
| 23. | 51.6 | Scott County School District / 18,990 |
| 24. | 51.3 | Polk County School District / 16,715 |
| 25. | 51.2 | Bradley County School District / 58,673 |
| 25. | 51.2 | Cleveland City School District / 42,331 |
| 27. | 51.1 | Hamilton County School District / 344,772 |
| 28. | 50.9 | McMinn County School District / 35,308 |
| 29. | 50.8 | Cocke County School District / 28,563 |
| 30. | 50.4 | Rhea County School District / 24,956 |
| 30. | 50.4 | Richard City Special School District / 975 |
| 32. | 50.3 | Sequatchie County School District / 14,431 |
| 32. | 50.3 | Cumberland County School District / 57,064 |
| 34. | 50.0 | Athens City Elementary School District / 13,603 |
| 34. | 50.0 | McMinn County School District in Athens / 13,603 |
| 36. | 49.9 | Oneida Special School District / 3,114 |
| 36. | 49.9 | Bledsoe County School District / 13,240 |
| 38. | 49.8 | Etowah City Elementary School District / 3,498 |
| 38. | 49.8 | Sumner County School District / 166,636 |
| 38. | 49.8 | Marion County School District / 27,286 |
| 38. | 49.8 | Meigs County School District / 11,694 |
| 38. | 49.8 | McMinn County School District in Etowah / 3,498 |
| 43. | 49.5 | Dayton City Elementary School District / 7,316 |
| 43. | 49.5 | Rhea County School District in Dayton / 7,316 |
| 45. | 49.3 | Robertson County School District / 67,024 |
| 45. | 49.3 | Grundy County School District / 13,574 |
| 47. | 49.2 | Greene County School District / 53,578 |
| 47. | 49.2 | Carter County School District / 42,976 |
| 47. | 49.2 | Van Buren County School District / 5,578 |
| 47. | 49.2 | Bristol City School District / 26,608 |
| 51. | 49.1 | Fentress County School District / 17,922 |
| 51. | 49.1 | Elizabethton City School District / 14,322 |
| 51. | 49.1 | Hawkins County School District in Rogersville / 4,410 |
| 51. | 49.1 | Coffee County School District in Manchester / 10,122 |
| 51. | 49.1 | Rogersville Town Elementary School District / 4,410 |
| 51. | 49.1 | Hawkins County School District / 49,460 |
| 51. | 49.1 | Manchester City School District / 10,122 |
| 58. | 49.0 | Greeneville City School District / 15,018 |
| 59. | 48.9 | White County School District / 26,086 |
| 60. | 48.8 | Johnson City School District / 60,565 |
| 61. | 48.7 | Hancock County School District / 6,706 |
| 62. | 48.6 | Putnam County School District / 73,237 |
| 62. | 48.6 | Jackson County School District / 11,555 |
| 62. | 48.6 | Campbell County School District / 40,361 |
| 62. | 48.6 | DeKalb County School District / 18,968 |
| 62. | 48.6 | Warren County School District / 39,867 |
| 67. | 48.5 | Coffee County School District / 25,575 |
| 67. | 48.5 | Trousdale County School District / 7,859 |
| 69. | 48.4 | Rutherford County School District / 160,718 |
| 69. | 48.4 | Unicoi County School District / 18,175 |
| 69. | 48.4 | Smith County School District / 19,092 |
| 72. | 48.2 | Clay County School District / 7,802 |
| 72. | 48.2 | Claiborne County School District / 31,841 |
| 72. | 48.2 | Sullivan County School District / 80,615 |
| 72. | 48.2 | Overton County School District / 22,109 |
| 76. | 48.1 | Franklin County School District / 41,069 |
| 77. | 48.0 | Fayette County School District / 38,664 |
| 78. | 47.9 | Pickett County School District / 5,101 |
| 78. | 47.9 | Bedford County School District / 45,660 |
| 78. | 47.9 | Crockett County School District in Bells / 3,965 |
| 78. | 47.9 | Bells City School District / 3,965 |
| 78. | 47.9 | Haywood County School District / 18,389 |
| 83. | 47.8 | Washington County School District / 64,233 |
| 83. | 47.8 | Rutherford County School District in Murfreesboro / 114,743 |
| 83. | 47.8 | Murfreesboro City Elementary School District / 114,743 |
| 83. | 47.8 | Dyer County School District / 21,158 |
| 83. | 47.8 | Lauderdale County School District / 27,619 |
| 88. | 47.7 | Humboldt City School District / 8,334 |
| 88. | 47.7 | Marshall County School District / 30,977 |
| 88. | 47.7 | Crockett County School District in Alamo / 4,215 |
| 88. | 47.7 | Alamo Town School District / 4,215 |
| 88. | 47.7 | Kingsport City School District / 52,498 |
| 88. | 47.7 | Cannon County School District / 13,786 |
| 88. | 47.7 | Crockett County School District / 6,419 |
| 88. | 47.7 | Trenton Special School District / 8,632 |
| 88. | 47.7 | Tullahoma City School District / 17,454 |
| 97. | 47.6 | Moore County School District / 6,348 |
| 97. | 47.6 | Lincoln County School District / 26,507 |
| 97. | 47.6 | Dyersburg City School District / 16,998 |
| 100. | 47.5 | Fayetteville City Elementary School District / 6,991 |
| 100. | 47.5 | Lincoln County School District in Fayetteville / 6,827 |
| 100. | 47.5 | Maury County School District / 82,729 |
| 103. | 47.5 | Jackson-Madison Consolidated School District / 98,364 |
| 104. | 47.4 | Lewis County School District / 12,010 |
| 104. | 47.4 | Williamson County School District in Franklin / 36,816 |
| 104. | 47.4 | Franklin Special School District / 36,816 |
| 107. | 47.3 | Hardeman County School District / 26,560 |
| 107. | 47.3 | Fort Campbell Schools / 6,825 |
| 107. | 47.3 | Tipton County School District / 61,433 |
| 110. | 47.2 | Giles County School District / 29,064 |
| 110. | 47.2 | Macon County School District / 22,582 |
| 110. | 47.2 | Chester County School District / 17,270 |
| 110. | 47.2 | Williamson County School District / 157,105 |
| 114. | 47.1 | Montgomery County School District / 175,190 |
| 114. | 47.1 | Decatur County School District / 11,675 |
| 114. | 47.1 | Shelby County School District / 280,755 |
| 117. | 46.9 | Perry County School District / 7,851 |
| 118. | 46.8 | Gibson County School District / 18,959 |
| 118. | 46.8 | Stewart County School District / 13,311 |
| 118. | 46.8 | Humphreys County School District / 18,322 |
| 118. | 46.8 | Milan City Special School District / 9,967 |
| 122. | 46.7 | Henderson County School District in Lexington / 7,771 |
| 122. | 46.7 | Bradford Special School District / 3,740 |
| 122. | 46.7 | Henderson County School District / 20,192 |
| 122. | 46.7 | Benton County School District / 16,345 |
| 122. | 46.7 | Hollow Rock-Bruceton Special School District / 4,123 |
| 122. | 46.7 | Lexington City Elementary School District / 7,771 |
| 122. | 46.7 | Lake County School District / 7,725 |
| 129. | 46.5 | West Carroll Special District / 7,181 |
| 129. | 46.5 | Huntingdon Special School District / 7,163 |
| 129. | 46.5 | McKenzie Special School District / 7,438 |
| 132. | 46.5 | Wayne County School District / 16,967 |
| 132. | 46.5 | Houston County School District / 8,356 |
| 132. | 46.5 | Lawrence County School District / 42,084 |
| 135. | 46.4 | Hardin County School District / 25,969 |
| 136. | 46.3 | Paris City Special School District / 11,518 |
| 136. | 46.3 | Nashville-Davidson County School District / 648,048 |
| 136. | 46.3 | Henry County School District in Paris / 11,518 |
| 136. | 46.3 | South Carroll Special School District / 2,606 |
| 140. | 46.1 | Henry County School District / 20,761 |
| 140. | 46.1 | McNairy County School District / 26,138 |
| 140. | 46.1 | Dickson County School District / 50,115 |
| 143. | 46.0 | Hickman County School District / 24,354 |
| 143. | 46.0 | Union City School District / 10,775 |
| 143. | 46.0 | Weakley County School District / 34,699 |
| 143. | 46.0 | Obion County School District / 20,603 |
| 147. | 45.9 | Lebanon Special School District / 31,609 |
| 147. | 45.9 | Cheatham County School District / 39,324 |
| 147. | 45.9 | Wilson County School District in Lebanon / 31,609 |
| 147. | 45.9 | Wilson County School District / 87,975 |
| 151. | 45.8 | Memphis City School District / 646,889 |
| 152. | 45.7 | Johnson County School District / 18,089 |
Please note that we only rank locations with 'Air Quality Index' data. The rank above might not be a complete list. Locations without 'Air Quality Index' data are not listed.
