| Rank | Solar Energy Heating House Percentage ▼ | School District / Population |
| 1. | 2.9% | Steptoe School District / 313 |
| 2. | 1.5% | Touchet School District / 1,126 |
| 3. | 1.4% | Methow Valley School District / 4,979 |
| 4. | 1.3% | Republic School District / 3,751 |
| 5. | 1.1% | Washtucna School District / 374 |
| 6. | 1.0% | Wellpinit School District / 999 |
| 7. | 1.0% | Southside School District / 2,210 |
| 8. | 0.7% | Palouse School District / 1,422 |
| 8. | 0.7% | Arlington School District / 30,700 |
| 10. | 0.7% | Medical Lake School District / 11,325 |
| 10. | 0.7% | Centerville School District / 922 |
| 12. | 0.6% | Sprague School District / 697 |
| 13. | 0.6% | Ritzville School District / 2,611 |
| 14. | 0.5% | Griffin School District / 6,347 |
| 15. | 0.5% | Coupeville School District / 10,520 |
| 15. | 0.5% | Kiona-Benton School District / 8,106 |
| 17. | 0.5% | Crescent School District / 2,720 |
| 17. | 0.5% | Lyle School District / 2,549 |
| 19. | 0.4% | Quilcene School District / 1,659 |
| 20. | 0.3% | Kettle Falls School District / 5,479 |
| 21. | 0.3% | Dayton School District / 3,837 |
| 22. | 0.2% | North Kitsap School District / 47,616 |
| 23. | 0.2% | Lynden School District / 18,355 |
| 24. | 0.2% | Eastmont School District / 29,976 |
| 25. | 0.2% | Cheney School District / 34,461 |
| 25. | 0.2% | Enumclaw School District / 25,760 |
| 25. | 0.2% | La Conner School District / 4,631 |
| 25. | 0.2% | Orcas Island School District / 5,251 |
| 25. | 0.2% | Lopez School District / 2,604 |
| 30. | 0.1% | Ferndale School District / 30,515 |
| 31. | 0.1% | Cle Elum-Roslyn School District / 7,728 |
| 31. | 0.1% | Winlock School District / 5,296 |
| 31. | 0.1% | Federal Way School District / 134,509 |
| 34. | 0.1% | Colville School District / 11,398 |
| 34. | 0.1% | Ridgefield School District / 14,498 |
| 36. | 0.1% | Tumwater School District / 37,970 |
| 37. | 0.1% | San Juan Island School District / 7,771 |
| 38. | 0.1% | Bremerton School District / 45,904 |
| 39. | 0.1% | Snohomish School District / 52,659 |
| 40. | 0.0% | Seattle School District / 638,610 |
| 40. | 0.0% | South Kitsap School District / 66,259 |
| 40. | 0.0% | Edmonds School District / 159,316 |
| 40. | 0.0% | Evergreen School District (Clark) / 144,158 |
| 44. | 0.0% | Yakima School District / 78,730 |
| 44. | 0.0% | Tacoma Public Schools / 212,381 |
| 44. | 0.0% | Battle Ground School District / 67,123 |
| 47. | 0.0% | Kent School District / 163,185 |
| 47. | 0.0% | Puyallup School District / 121,755 |
| 47. | 0.0% | Highline School District / 128,065 |
| 47. | 0.0% | Bethel School District / 103,634 |
Please note that we only rank locations with 'Solar Energy Heating House Percentage' data. The rank above might not be a complete list. Locations without 'Solar Energy Heating House Percentage' data are not listed.
