| Rank | No Fuel Used Heating House Percentage ▼ | School District / Population |
| 1. | 5.5% | Prairie School District RE-11 / 548 |
| 2. | 1.5% | Brush School District RE-2J / 7,891 |
| 3. | 1.5% | Woodlin School District R-104 / 294 |
| 4. | 1.1% | Deer Trail School District 26J / 693 |
| 5. | 1.1% | Salida School District R-32 / 9,595 |
| 6. | 1.0% | Dolores County School District RE-2 / 2,065 |
| 7. | 1.0% | Rangely School District RE-4 / 2,638 |
| 8. | 0.9% | Huerfano School District RE-1 / 5,581 |
| 9. | 0.9% | Miami-Yoder School District 60-JT / 1,919 |
| 10. | 0.9% | Buena Vista School District R-31 / 7,984 |
| 11. | 0.9% | Eaton School District RE-2 / 9,437 |
| 12. | 0.8% | Elizabeth School District C-1 / 13,615 |
| 13. | 0.7% | Johnstown-Milliken School District RE-5J / 14,925 |
| 14. | 0.7% | La Veta School District RE-2 / 1,367 |
| 15. | 0.7% | Montezuma-Cortez School District RE-1 / 18,405 |
| 16. | 0.7% | Denver County School District 1 / 578,087 |
| 17. | 0.6% | Bennett School District 29-J / 5,683 |
| 18. | 0.6% | McClave School District RE-2 / 702 |
| 19. | 0.6% | Canon City School District RE-1 / 29,840 |
| 19. | 0.6% | Englewood School District 1 / 25,674 |
| 19. | 0.6% | Akron School District R-1 / 2,635 |
| 22. | 0.5% | Cheyenne County School District RE-5 / 1,647 |
| 23. | 0.5% | Fowler School District R-4J / 2,420 |
| 23. | 0.5% | Sheridan School District 2 / 7,959 |
| 25. | 0.5% | Ignacio School District 11-JT / 5,672 |
| 26. | 0.4% | Greeley School District 6 / 112,663 |
| 27. | 0.4% | Boulder Valley School District RE-2 / 210,986 |
| 28. | 0.4% | Moffat County School District RE-1 / 13,519 |
| 29. | 0.3% | Adams-Arapahoe School District 28J / 204,199 |
| 29. | 0.3% | Fort Morgan School District RE-3 / 16,911 |
| 31. | 0.3% | Thompson School District R-2J / 100,255 |
| 31. | 0.3% | Littleton School District 6 / 90,627 |
| 33. | 0.3% | Mesa County Valley School District 51 / 138,863 |
| 33. | 0.3% | Lamar School District RE-2 / 9,374 |
| 35. | 0.3% | Cherry Creek School District 5 / 257,871 |
| 36. | 0.3% | Crowley County School District RE-1-J / 5,590 |
| 36. | 0.3% | Colorado Springs School District 11 / 221,148 |
| 38. | 0.3% | Hoehne Reorganized School District 3 / 2,128 |
| 39. | 0.3% | Delta County School District 50J / 31,170 |
| 39. | 0.3% | Platte Canyon School District 1 / 10,316 |
| 41. | 0.2% | Jefferson County School District R-1 / 530,782 |
| 41. | 0.2% | Harrison School District 2 / 66,847 |
| 43. | 0.2% | Pueblo City School District 60 / 108,431 |
| 43. | 0.2% | Manzanola School District 3J / 1,147 |
| 43. | 0.2% | Cheyenne Mountain School District 12 / 21,817 |
| 46. | 0.2% | Windsor School District RE-4 / 19,665 |
| 47. | 0.2% | Widefield School District 3 / 43,080 |
| 47. | 0.2% | Northglenn-Thornton School District 12 / 200,740 |
| 47. | 0.2% | Garfield School District RE-2 / 23,918 |
| 50. | 0.2% | Poudre School District R-1 / 179,859 |
| 51. | 0.2% | Montrose County School District RE-1J / 37,696 |
| 52. | 0.2% | Steamboat Springs School District RE-2 / 16,165 |
| 53. | 0.1% | St. Vrain Valley School District RE 1J / 145,038 |
| 54. | 0.1% | Fountain School District 8 / 30,129 |
| 54. | 0.1% | Douglas County School District RE-1 / 275,900 |
| 56. | 0.1% | Pueblo County School District 70 / 47,531 |
| 56. | 0.1% | Westminster School District 50 / 69,912 |
| 56. | 0.1% | Cripple Creek-Victor School District RE-1 / 5,079 |
| 59. | 0.1% | Ault-Highland School District RE-9 / 5,560 |
| 59. | 0.1% | Brighton School District 27J / 70,552 |
| 61. | 0.1% | Adams County School District 14 / 35,567 |
| 62. | 0.1% | Keenesburg School District RE-3J / 11,144 |
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.
