| Rank | No Fuel Used Heating House Percentage ▼ | School District / Population |
| 1. | 6.6% | Galata Elementary School District / 289 |
| 2. | 3.6% | Cottonwood Elementary School District / 356 |
| 3. | 2.9% | Paradise Elementary School District / 392 |
| 4. | 2.8% | Melstone High School District / 424 |
| 5. | 2.7% | Alzada Elementary School District / 160 |
| 6. | 2.6% | Peerless K-12 Schools / 137 |
| 7. | 1.9% | West Glacier Elementary School District / 411 |
| 8. | 1.8% | Bainville K-12 Schools / 335 |
| 9. | 1.7% | Melstone Elementary School District / 619 |
| 10. | 1.3% | Lewistown Elementary School District / 8,714 |
| 11. | 1.3% | Fergus High School District / 8,858 |
| 12. | 1.3% | Glendive Elementary School District / 6,042 |
| 12. | 1.3% | Circle Elementary School District / 1,213 |
| 14. | 1.3% | Medicine Lake K-12 Schools / 723 |
| 15. | 1.3% | Lone Rock Elementary School District / 3,252 |
| 16. | 1.2% | West Valley Elementary School District / 2,822 |
| 17. | 1.1% | Anaconda Elementary School District / 8,737 |
| 18. | 1.1% | Anaconda High School District / 8,782 |
| 18. | 1.1% | Hays-Lodge Pole K-12 Schools / 1,016 |
| 20. | 1.1% | Lima K-12 Schools / 409 |
| 21. | 1.0% | Pioneer Elementary School District / 792 |
| 22. | 1.0% | Dawson High School District / 8,074 |
| 23. | 0.9% | Circle High School District / 1,747 |
| 24. | 0.9% | Philipsburg K-12 Schools / 1,673 |
| 25. | 0.9% | Clancy Elementary School District / 2,569 |
| 26. | 0.9% | Livingston Elementary School District / 10,306 |
| 27. | 0.8% | Creston Elementary School District / 1,060 |
| 28. | 0.8% | Geraldine Elementary School District / 652 |
| 29. | 0.8% | Park High School District / 12,686 |
| 30. | 0.7% | Geraldine High School District / 713 |
| 31. | 0.7% | Stevensville High School District / 9,879 |
| 32. | 0.7% | Ramsay Elementary School District / 1,040 |
| 33. | 0.6% | Trinity Elementary School District / 1,242 |
| 34. | 0.6% | Glasgow K-12 Schools / 4,534 |
| 35. | 0.6% | Shelby High School District / 3,810 |
| 36. | 0.5% | Whitefish Elementary School District / 14,029 |
| 37. | 0.5% | Whitefish High School District / 14,617 |
| 38. | 0.5% | Butte High School District / 32,714 |
| 38. | 0.5% | Butte Elementary School District / 31,449 |
| 40. | 0.5% | Stevensville Elementary School District / 6,627 |
| 41. | 0.5% | Great Falls High School District / 72,659 |
| 41. | 0.5% | Great Falls Elementary School District / 72,584 |
| 43. | 0.5% | Canyon Creek Elementary School District / 1,807 |
| 43. | 0.5% | Plains High School District / 3,352 |
| 45. | 0.4% | Arlee High School District / 2,377 |
| 45. | 0.4% | Arlee Elementary School District / 2,377 |
| 47. | 0.4% | Blue Creek Elementary School District / 2,190 |
| 48. | 0.4% | Arrowhead Elementary School District / 1,852 |
| 49. | 0.4% | Hardin High School District / 8,013 |
| 50. | 0.4% | Carter County High School District / 1,237 |
| 51. | 0.3% | Bozeman Elementary School District / 51,961 |
| 52. | 0.3% | Hardin Elementary School District / 8,993 |
| 53. | 0.3% | Jefferson High School District / 7,804 |
| 54. | 0.3% | East Helena Elementary School District / 8,387 |
| 54. | 0.3% | Sheridan Elementary School District / 1,783 |
| 56. | 0.3% | Hamilton K-12 Schools / 11,767 |
| 56. | 0.3% | Billings Elementary School District / 104,681 |
| 56. | 0.3% | Missoula Elementary School District / 70,583 |
| 56. | 0.3% | Bozeman High School District / 58,563 |
| 60. | 0.3% | Miles City Elementary School District / 9,488 |
| 60. | 0.3% | Billings High School District / 122,509 |
| 62. | 0.3% | Sheridan High School District / 2,075 |
| 62. | 0.3% | Sidney Elementary School District / 6,244 |
| 62. | 0.3% | Name N/A / 852,731 |
| 65. | 0.2% | Missoula High School District / 97,049 |
| 65. | 0.2% | Sidney High School District / 6,811 |
| 65. | 0.2% | Custer County High School District / 11,129 |
| 68. | 0.2% | Hellgate Elementary School District / 10,647 |
| 69. | 0.1% | Helena High School District / 58,464 |
| 70. | 0.1% | Havre High School District / 13,197 |
| 71. | 0.1% | Helena Elementary School District / 48,201 |
| 72. | 0.1% | Columbia Falls High School District / 14,405 |
| 72. | 0.1% | Flathead High School District / 52,794 |
| 72. | 0.1% | Townsend K-12 Schools / 4,335 |
Please note that we only rank locations with 'No Fuel Used Heating House Percentage' data. The rank above might not be a complete list. Locations without 'No Fuel Used Heating House 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.
