| Rank | Coal or Coke Heating House Percentage ▼ | School District / Population |
| 1. | 0.8% | Andover School District / 3,246 |
| 1. | 0.8% | Barkhamsted School District / 3,781 |
| 3. | 0.8% | Marlborough School District / 6,287 |
| 4. | 0.7% | Regional School District 13 / 11,706 |
| 5. | 0.7% | Wolcott School District / 16,446 |
| 6. | 0.6% | North Stonington School District / 5,252 |
| 7. | 0.6% | Plymouth School District / 12,213 |
| 8. | 0.6% | Ashford School District / 4,320 |
| 9. | 0.6% | Columbia School District / 5,425 |
| 9. | 0.6% | Regional School District 18 / 9,912 |
| 11. | 0.5% | Canaan School District / 1,161 |
| 12. | 0.5% | Lebanon School District / 7,253 |
| 13. | 0.5% | Regional School District 14 / 13,504 |
| 13. | 0.5% | Woodbridge School District / 9,007 |
| 15. | 0.4% | Regional School District 15 / 27,080 |
| 15. | 0.4% | New Milford School District / 28,159 |
| 17. | 0.4% | Woodstock School District / 7,892 |
| 17. | 0.4% | Granby School District / 11,124 |
| 19. | 0.4% | Vernon School District / 29,205 |
| 20. | 0.4% | Regional High School District 08 / 19,104 |
| 21. | 0.4% | Branford School District / 28,194 |
| 21. | 0.4% | Griswold School District / 11,774 |
| 21. | 0.4% | Portland School District / 9,422 |
| 24. | 0.3% | Stratford School District / 50,821 |
| 25. | 0.3% | Willington School District / 6,068 |
| 26. | 0.3% | Newington School District / 30,361 |
| 27. | 0.3% | Somers School District / 11,378 |
| 27. | 0.3% | East Hampton School District / 12,891 |
| 29. | 0.3% | Groton School District / 40,254 |
| 29. | 0.3% | Plainville School District / 17,625 |
| 29. | 0.3% | Seymour School District / 16,367 |
| 29. | 0.3% | Litchfield School District / 8,512 |
| 33. | 0.3% | Stafford School District / 12,046 |
| 33. | 0.3% | Coventry School District / 12,354 |
| 33. | 0.3% | Regional High School District 05 / 28,305 |
| 36. | 0.2% | Wilton School District / 17,874 |
| 36. | 0.2% | Clinton School District / 13,316 |
| 38. | 0.2% | Regional High School District 07 / 13,679 |
| 39. | 0.2% | Orange School District / 13,831 |
| 40. | 0.2% | Westport School District / 26,109 |
| 40. | 0.2% | Regional School District 10 / 14,721 |
| 42. | 0.2% | Colchester School District / 15,849 |
| 42. | 0.2% | North Haven School District / 23,927 |
| 42. | 0.2% | Regional High School District 19 / 36,243 |
| 45. | 0.2% | Simsbury School District / 23,477 |
| 46. | 0.2% | Shelton School District / 39,061 |
| 46. | 0.2% | Regional School District 12 / 7,569 |
| 46. | 0.2% | Watertown School District / 22,522 |
| 49. | 0.1% | Danbury School District / 79,371 |
| 49. | 0.1% | Name N/A / 216,484 |
| 49. | 0.1% | Ledyard School District / 15,023 |
| 52. | 0.1% | West Haven School District / 55,070 |
| 53. | 0.1% | Bridgeport School District / 142,576 |
| 53. | 0.1% | Regional School District 06 / 6,891 |
| 55. | 0.1% | Ridgefield School District / 24,299 |
| 55. | 0.1% | Windsor School District / 28,947 |
| 55. | 0.1% | Hartford School District / 124,760 |
| 55. | 0.1% | Torrington School District / 36,423 |
| 59. | 0.1% | Norwich School District / 39,843 |
| 60. | 0.1% | Bristol School District / 60,466 |
| 61. | 0.1% | Farmington School District / 25,067 |
| 61. | 0.1% | Manchester School District / 57,650 |
| 61. | 0.1% | Southington School District / 42,491 |
| 64. | 0.1% | Fairfield School District / 58,727 |
| 64. | 0.1% | Milford School District / 52,753 |
| 64. | 0.1% | Waterbury School District / 109,941 |
| 64. | 0.1% | Enfield School District / 44,794 |
| 68. | 0.1% | Meriden School District / 60,484 |
| 69. | 0.0% | West Hartford School District / 62,898 |
| 69. | 0.0% | Regional High School District 01 / 15,732 |
| 69. | 0.0% | New Britain School District / 72,954 |
| 69. | 0.0% | East Haven School District / 29,074 |
| 73. | 0.0% | New Haven School District / 128,885 |
Please note that we only rank locations with 'Coal or Coke Heating House Percentage' data. The rank above might not be a complete list. Locations without 'Coal or Coke 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.
