| Rank | No Fuel Used Heating House Percentage ▼ | School District / Population |
| 1. | 5.7% | Newcastle / 1,814 |
| 2. | 4.0% | Regional School Unit 01 / 16,270 |
| 3. | 3.1% | Talmadge / 57 |
| 4. | 2.9% | Great Salt Bay Community School District / 4,768 |
| 5. | 2.7% | School Administrative District 13 / 1,439 |
| 6. | 2.4% | School Administrative District 29 / 8,199 |
| 7. | 1.6% | Damariscotta / 2,170 |
| 8. | 1.4% | Aroostook Unorganized Territory / 1,408 |
| 9. | 1.4% | Boothbay-Boothbay Harbor Community School District / 5,266 |
| 10. | 1.2% | Dennysville / 408 |
| 11. | 1.2% | School Administrative District 33 / 1,783 |
| 12. | 1.0% | School Administrative District 07 / 456 |
| 12. | 1.0% | Madawaska / 4,046 |
| 14. | 1.0% | School Administrative District 20 / 3,478 |
| 15. | 0.8% | School Administrative District 61 / 14,444 |
| 16. | 0.7% | South Bristol / 964 |
| 17. | 0.7% | School Administrative District 74 / 5,330 |
| 17. | 0.7% | Blue Hill / 2,681 |
| 19. | 0.6% | Name N/A / 10,191 |
| 20. | 0.5% | School Administrative District 72 / 7,759 |
| 21. | 0.5% | Name N/A / 31,164 |
| 22. | 0.5% | Westbrook / 17,501 |
| 23. | 0.5% | Auburn / 23,104 |
| 23. | 0.5% | Regional School Unit 39 / 10,596 |
| 25. | 0.5% | Brooklin / 981 |
| 26. | 0.5% | Brunswick / 20,376 |
| 27. | 0.4% | Dedham / 1,850 |
| 28. | 0.4% | Eastport / 1,458 |
| 29. | 0.4% | Sanford / 20,885 |
| 30. | 0.4% | York / 12,625 |
| 31. | 0.4% | School Administrative District 28 / 8,227 |
| 32. | 0.4% | School Administrative District 27 / 6,495 |
| 33. | 0.3% | Name N/A / 5,673 |
| 34. | 0.3% | School Administrative District 68 / 6,850 |
| 34. | 0.3% | School Administrative District 67 / 6,398 |
| 36. | 0.3% | School Administrative District 75 / 19,564 |
| 36. | 0.3% | Falmouth / 11,233 |
| 36. | 0.3% | School Administrative District 35 / 13,454 |
| 39. | 0.3% | Portland / 66,235 |
| 39. | 0.3% | Lisbon / 9,023 |
| 41. | 0.2% | School Administrative District 17 / 24,188 |
| 41. | 0.2% | School Administrative District 60 / 17,903 |
| 43. | 0.2% | Biddeford / 21,351 |
| 44. | 0.2% | Name N/A / 13,696 |
| 45. | 0.2% | Regional School Unit 02 / 14,802 |
| 45. | 0.2% | School Administrative District 58 / 4,903 |
| 45. | 0.2% | Lewiston / 36,588 |
| 48. | 0.2% | Regional School Unit 34 / 10,342 |
| 48. | 0.2% | School Administrative District 41 / 4,454 |
| 50. | 0.2% | Augusta / 19,088 |
| 50. | 0.2% | South Portland / 24,997 |
| 50. | 0.2% | Regional School Unit 26 / 17,096 |
| 53. | 0.2% | Bangor / 32,988 |
| 54. | 0.2% | Regional School Unit 13 / 17,136 |
| 54. | 0.2% | School Administrative District 37 / 5,873 |
| 56. | 0.1% | Waterville / 15,780 |
| 56. | 0.1% | Regional School Unit 21 / 18,423 |
| 58. | 0.1% | School Administrative District 70 / 3,684 |
| 59. | 0.1% | School Administrative District 03 / 10,466 |
| 60. | 0.1% | Regional School Unit 19 / 14,814 |
| 61. | 0.1% | Regional School Unit 23 / 29,430 |
| 61. | 0.1% | School Administrative District 09 / 17,751 |
| 63. | 0.1% | Regional School Unit 12 / 14,737 |
| 64. | 0.0% | Regional School Unit 20 / 18,290 |
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.
