| Rank | No Fuel Used Heating House Percentage ▼ | School District / Population |
| 1. | 4.6% | West Lyon Community School District / 4,823 |
| 2. | 3.3% | Lawton-Bronson Community School District / 3,078 |
| 3. | 3.2% | Lynnville-Sully Community School District / 3,164 |
| 4. | 2.6% | Springville Community School District / 2,568 |
| 5. | 2.5% | Farragut Community School District / 1,483 |
| 6. | 2.5% | Martensdale-St. Marys Community School District / 3,019 |
| 7. | 2.4% | Morning Sun Community School District / 1,362 |
| 8. | 2.4% | English Valleys Community School District / 2,890 |
| 9. | 2.1% | Jefferson-Scranton Community School District / 6,062 |
| 10. | 2.0% | Edgewood-Colesburg Community School District / 2,949 |
| 11. | 1.9% | Aurelia Community School District / 1,646 |
| 12. | 1.8% | Galva-Holstein Community School District / 2,573 |
| 13. | 1.8% | Hudson Community School District / 3,327 |
| 14. | 1.7% | Hamburg Community School District / 1,478 |
| 15. | 1.7% | Walnut Community School District / 1,219 |
| 16. | 1.7% | Mount Vernon Community School District / 6,779 |
| 17. | 1.6% | MOC-Floyd Valley Community School District / 11,218 |
| 18. | 1.6% | East Buchanan Community School District / 2,905 |
| 19. | 1.6% | North Cedar Community School District / 5,101 |
| 20. | 1.5% | Dallas Center-Grimes Community School District / 10,190 |
| 21. | 1.5% | Earlham Community School District / 3,358 |
| 22. | 1.5% | Interstate 35 Community School District / 4,979 |
| 23. | 1.5% | Dows Community School District / 801 |
| 24. | 1.5% | Iowa Valley Community School District / 3,512 |
| 25. | 1.4% | Prescott Community School District / 645 |
| 26. | 1.4% | Orient-Macksburg Community School District / 1,209 |
| 27. | 1.4% | Central Decatur Community School District / 4,215 |
| 28. | 1.4% | Adair-Casey Community School District / 1,914 |
| 29. | 1.3% | Woodbury Central Community School District / 2,901 |
| 29. | 1.3% | Marion Independent School District / 12,255 |
| 31. | 1.3% | Charter Oak-Ute Community School District / 2,099 |
| 32. | 1.3% | IKM Community School District / 4,641 |
| 33. | 1.3% | Wilton Community School District / 4,251 |
| 33. | 1.3% | Nodaway Valley Community School District / 4,119 |
| 35. | 1.3% | River Valley Community School District / 2,583 |
| 36. | 1.2% | Central Clinton Community School District / 9,489 |
| 37. | 1.2% | Guthrie Center Community School District / 2,625 |
| 38. | 1.2% | Benton Community School District / 9,202 |
| 38. | 1.2% | Essex Community School District / 1,445 |
| 40. | 1.2% | Twin Rivers Community School District / 1,193 |
| 41. | 1.1% | Armstrong-Ringsted Community School District / 2,149 |
| 42. | 1.1% | Sheldon Community School District / 7,292 |
| 43. | 1.1% | Le Mars Community School District / 13,419 |
| 44. | 1.1% | Woodbine Community School District / 2,660 |
| 44. | 1.1% | Monticello Community School District / 6,621 |
| 46. | 1.1% | West Central Community School District / 1,871 |
| 47. | 1.1% | East Union Community School District / 3,256 |
| 48. | 1.0% | Washington Community School District / 10,221 |
| 48. | 1.0% | Tipton Community School District / 4,999 |
| 50. | 1.0% | Adel-De Soto-Minburn Community School District / 8,067 |
| 51. | 1.0% | Nevada Community School District / 8,919 |
| 51. | 1.0% | Wall Lake View Auburn Community School District / 5,728 |
| 53. | 1.0% | Eagle Grove Community School District / 4,693 |
| 54. | 1.0% | Webster City Community School District / 9,959 |
| 55. | 0.9% | Anamosa Community School District / 9,287 |
| 56. | 0.9% | Newton Community School District / 21,242 |
| 57. | 0.9% | Rockwell City-Lytton Community School District / 3,246 |
| 57. | 0.9% | Carroll Community School District / 14,060 |
| 57. | 0.9% | Boyden-Hull Community School District / 4,358 |
| 57. | 0.9% | Pekin Community School District / 3,690 |
| 61. | 0.9% | Sioux City Community School District / 83,385 |
| 62. | 0.9% | Camanche Community School District / 5,616 |
| 63. | 0.9% | Chariton Community School District / 8,330 |
| 63. | 0.9% | North Winneshiek Community School District / 2,037 |
| 65. | 0.9% | Sentral Community School District / 1,028 |
| 66. | 0.8% | Keota Community School District / 2,064 |
| 66. | 0.8% | Schaller-Crestland Community School District / 2,388 |
| 66. | 0.8% | Fort Dodge Community School District / 28,658 |
| 66. | 0.8% | Paton-Churdan Community School District / 1,112 |
| 66. | 0.8% | North Kossuth Community School District / 2,237 |
| 71. | 0.8% | Clayton Ridge Community School District / 5,044 |
| 71. | 0.8% | Stratford Community School District / 1,209 |
| 71. | 0.8% | Davis County Community School District / 8,677 |
| 74. | 0.8% | Ruthven-Ayrshire Community School District / 1,409 |
| 75. | 0.8% | Diagonal Community School District / 662 |
| 76. | 0.8% | Waukee Community School District / 41,420 |
| 76. | 0.8% | West Harrison Community School District / 2,638 |
| 76. | 0.8% | Ar-We-Va Community School District / 2,230 |
| 79. | 0.8% | West Hancock Community School District / 4,119 |
| 79. | 0.8% | Nashua-Plainfield Community School District / 3,878 |
| 81. | 0.8% | Forest City Community School District / 7,723 |
| 81. | 0.8% | Calamus-Wheatland Community School District / 2,301 |
| 83. | 0.8% | Lenox Community School District / 2,032 |
| 83. | 0.8% | United Community School District / 2,145 |
| 83. | 0.8% | College Community School District / 24,875 |
| 86. | 0.7% | St. Ansgar Community School District / 4,065 |
| 86. | 0.7% | West Branch Community School District / 4,319 |
| 88. | 0.7% | South O'Brien Community School District / 4,582 |
| 89. | 0.7% | Hubbard-Radcliffe Community School District / 2,896 |
| 89. | 0.7% | North Scott Community School District / 15,673 |
| 89. | 0.7% | Schleswig Community School District / 1,630 |
| 92. | 0.7% | Harris-Lake Park Community School District / 1,717 |
| 93. | 0.7% | Western Dubuque Community School District / 22,060 |
| 94. | 0.7% | Centerville Community School District / 8,881 |
| 94. | 0.7% | Clarinda Community School District / 7,277 |
| 94. | 0.7% | Mason City Community School District / 28,622 |
| 97. | 0.7% | Clarke Community School District / 8,023 |
| 98. | 0.7% | Odebolt-Arthur Community School District / 2,227 |
| 98. | 0.7% | Delwood Community School District / 1,123 |
| 98. | 0.7% | Grundy Center Community School District / 3,725 |
| 98. | 0.7% | Spencer Community School District / 12,952 |
| 102. | 0.6% | Harmony Community School District / 2,823 |
| 102. | 0.6% | H-L-V Community School District / 2,207 |
| 104. | 0.6% | Central Community School District / 3,329 |
| 104. | 0.6% | Emmetsburg Community School District / 4,971 |
| 106. | 0.6% | Graettinger Community School District / 2,201 |
| 106. | 0.6% | Northwood-Kensett Community School District / 3,314 |
| 108. | 0.6% | Riceville Community School District / 2,655 |
| 108. | 0.6% | Woodward-Granger Community School District / 5,287 |
| 108. | 0.6% | Hinton Community School District / 2,690 |
| 108. | 0.6% | Iowa City Community School District / 110,675 |
| 112. | 0.6% | Villisca Community School District / 2,189 |
| 112. | 0.6% | Des Moines Independent Community School District / 205,612 |
| 112. | 0.6% | Davenport Community School District / 108,996 |
| 115. | 0.6% | Kingsley-Pierson Community School District / 2,646 |
| 115. | 0.6% | Hartley-Melvin-Sanborn Community School District / 4,250 |
| 115. | 0.6% | Murray Community School District / 1,200 |
| 118. | 0.6% | Southeast Polk Community School District / 33,956 |
| 118. | 0.6% | Algona Community School District / 9,417 |
| 118. | 0.6% | Boone Community School District / 14,429 |
| 121. | 0.6% | Boyer Valley Community School District / 2,740 |
| 121. | 0.6% | Urbandale Community School District / 20,873 |
| 123. | 0.6% | West Burlington Independent School District / 2,839 |
| 123. | 0.6% | Collins-Maxwell Community School District / 2,689 |
| 125. | 0.5% | Oskaloosa Community School District / 15,978 |
| 125. | 0.5% | South Hamilton Community School District / 3,602 |
| 127. | 0.5% | Cherokee Community School District / 6,432 |
| 127. | 0.5% | Mount Ayr Community School District / 4,141 |
| 127. | 0.5% | Malvern Community School District / 3,384 |
| 130. | 0.5% | Solon Community School District / 6,638 |
| 131. | 0.5% | Lake Mills Community School District / 3,576 |
| 131. | 0.5% | Charles City Community School District / 11,219 |
| 131. | 0.5% | Central Lee Community School District / 5,129 |
| 131. | 0.5% | Ogden Community School District / 4,003 |
| 131. | 0.5% | Norwalk Community School District / 11,717 |
| 131. | 0.5% | Dunkerton Community School District / 2,499 |
| 131. | 0.5% | West Des Moines Community School District / 65,738 |
| 138. | 0.5% | Fort Madison Community School District / 17,216 |
| 138. | 0.5% | Exira Community School District / 1,825 |
| 138. | 0.5% | Mid-Prairie Community School District / 9,096 |
| 138. | 0.5% | South Tama County Community School District / 8,674 |
| 138. | 0.5% | Audubon Community School District / 3,382 |
| 143. | 0.5% | West Sioux Community School District / 3,988 |
| 143. | 0.5% | Glidden-Ralston Community School District / 2,080 |
| 143. | 0.5% | Wayne Community School District / 3,819 |
| 143. | 0.5% | Eldora-New Providence Community School District / 3,765 |
| 143. | 0.5% | Burlington Community School District / 30,070 |
| 148. | 0.5% | Marshalltown Community School District / 30,396 |
| 148. | 0.5% | Union Community School District / 6,347 |
| 148. | 0.5% | Osage Community School District / 5,969 |
| 148. | 0.5% | C and M Community School District / 2,951 |
| 148. | 0.5% | Garner-Hayfield Community School District / 3,852 |
| 148. | 0.5% | Waterloo Community School District / 77,406 |
| 154. | 0.5% | South Page Community School District / 1,510 |
| 154. | 0.5% | Columbus Community School District / 4,667 |
| 154. | 0.5% | Cardinal Community School District / 4,014 |
| 154. | 0.5% | Winfield-Mount Union Community School District / 1,651 |
| 158. | 0.5% | Sibley-Ocheyedan Community School District / 4,603 |
| 158. | 0.5% | Southern Cal Community School District / 2,962 |
| 158. | 0.5% | Battle Creek-Ida Grove Community School District / 3,937 |
| 161. | 0.5% | Storm Lake Community School District / 12,212 |
| 161. | 0.5% | Sheffield Chapin Meservey Thornton Community School District / 4,716 |
| 161. | 0.5% | North Mahaska Community School District / 2,811 |
| 164. | 0.4% | Ottumwa Community School District / 28,949 |
| 165. | 0.4% | Sioux Center Community School District / 8,923 |
| 166. | 0.4% | Dubuque Community School District / 76,893 |
| 167. | 0.4% | Allison-Bristow Community School District / 4,070 |
| 168. | 0.4% | Janesville Consolidated School District / 2,455 |
| 168. | 0.4% | East Marshall Community School District / 4,093 |
| 168. | 0.4% | Akron-Westfield Community School District / 3,200 |
| 171. | 0.4% | Tripoli Community School District / 2,771 |
| 171. | 0.4% | Whiting Community School District / 1,328 |
| 173. | 0.4% | Aplington-Parkersburg Community School District / 4,304 |
| 174. | 0.4% | Belmond-Klemme Community School District / 4,389 |
| 175. | 0.4% | Clarksville Community School District / 2,094 |
| 175. | 0.4% | Colfax-Mingo Community School District / 4,262 |
| 175. | 0.4% | Cedar Rapids Community School District / 120,797 |
| 175. | 0.4% | Brooklyn-Guernsey-Malcom Community School District / 3,173 |
| 175. | 0.4% | Hampton-Dumont Community School District / 6,739 |
| 180. | 0.4% | North Central Community School District / 5,594 |
| 180. | 0.4% | Prairie Valley Community School District / 4,144 |
| 180. | 0.4% | Northeast Hamilton Community School District / 1,390 |
| 183. | 0.3% | Harlan Community School District / 8,844 |
| 183. | 0.3% | Shenandoah Community School District / 6,133 |
| 185. | 0.3% | Independence Community School District / 9,001 |
| 185. | 0.3% | Indianola Community School District / 20,037 |
| 187. | 0.3% | Riverside Community School District / 4,115 |
| 187. | 0.3% | Starmont Community School District / 3,814 |
| 189. | 0.3% | Panorama Community School District / 4,575 |
| 189. | 0.3% | Name N/A / 1,521 |
| 191. | 0.3% | Pocahontas Area Community School District / 5,262 |
| 191. | 0.3% | Waverly-Shell Rock Community School District / 13,825 |
| 191. | 0.3% | Council Bluffs Community School District / 59,876 |
| 191. | 0.3% | Clinton Community School District / 25,889 |
| 191. | 0.3% | AGWSR Community School District / 4,849 |
| 191. | 0.3% | Laurens-Marathon Community School District / 2,182 |
| 191. | 0.3% | East Greene Community School District / 1,714 |
| 191. | 0.3% | Oelwein Community School District / 8,702 |
| 199. | 0.3% | Mormon Trail Community School District / 1,675 |
| 199. | 0.3% | Keokuk Community School District / 12,931 |
| 201. | 0.3% | Humboldt Community School District / 7,467 |
| 201. | 0.3% | Ankeny Community School District / 53,970 |
| 201. | 0.3% | Maquoketa Valley Community School District / 4,450 |
| 201. | 0.3% | Winterset Community School District / 8,821 |
| 201. | 0.3% | North Iowa Community School District / 3,147 |
| 206. | 0.3% | GMG Community School District / 1,782 |
| 207. | 0.3% | New Hampton Community School District / 7,238 |
| 207. | 0.3% | Valley Community School District / 3,065 |
| 207. | 0.3% | Van Meter Community School District / 3,282 |
| 210. | 0.3% | North Fayette Community School District / 6,122 |
| 210. | 0.3% | New London Community School District / 2,987 |
| 210. | 0.3% | Eddyville-Blakesburg Community School District / 5,108 |
| 210. | 0.3% | Cedar Falls Community School District / 41,989 |
| 210. | 0.3% | Sigourney Community School District / 3,751 |
| 215. | 0.2% | Westwood Community School District / 3,153 |
| 215. | 0.2% | East Central Community School District / 4,005 |
| 215. | 0.2% | Ames Community School District / 58,297 |
| 218. | 0.2% | Creston Community School District / 9,674 |
| 219. | 0.2% | Atlantic Community School District / 8,459 |
| 219. | 0.2% | Red Oak Community School District / 6,975 |
| 219. | 0.2% | Vinton-Shellsburg Community School District / 10,383 |
| 219. | 0.2% | Denver Community School District / 3,847 |
| 219. | 0.2% | Maquoketa Community School District / 8,888 |
| 224. | 0.2% | Glenwood Community School District / 11,075 |
| 225. | 0.2% | Eastern Allamakee Community School District / 2,710 |
| 225. | 0.2% | Sioux Central Community School District / 2,581 |
| 227. | 0.2% | Estherville Lincoln Central Community School District / 7,995 |
| 227. | 0.2% | Albia Community School District / 7,435 |
| 227. | 0.2% | Maple Valley Community School District / 4,404 |
| 227. | 0.2% | Central City Community School District / 2,998 |
| 227. | 0.2% | Allamakee Community School District / 8,539 |
| 227. | 0.2% | Elk Horn-Kimballton Community School District / 1,467 |
| 227. | 0.2% | Pleasant Valley Community School District / 20,099 |
| 234. | 0.2% | Clear Creek-Amana Community School District / 12,321 |
| 234. | 0.2% | Tri-Center Community School District / 3,553 |
| 234. | 0.2% | Andrew Community School District / 1,551 |
| 237. | 0.1% | Missouri Valley Community School District / 5,140 |
| 237. | 0.1% | Johnston Community School District / 34,241 |
| 239. | 0.1% | Cal Community School District / 1,713 |
| 240. | 0.1% | Bettendorf Community School District / 23,151 |
| 240. | 0.1% | Central Lyon Community School District / 4,018 |
| 242. | 0.1% | Lewis Central Community School District / 15,278 |
| 243. | 0.1% | Okoboji Community School District / 6,700 |
| 243. | 0.1% | Gladbrook-Reinbeck Community School District / 4,417 |
| 243. | 0.1% | Van Buren Community School District / 5,065 |
| 246. | 0.1% | George-Little Rock Community School District / 2,698 |
| 246. | 0.1% | Northeast Community School District / 2,941 |
| 248. | 0.1% | Turkey Valley Community School District / 2,954 |
| 248. | 0.1% | West Central Valley Community School District / 5,965 |
| 250. | 0.1% | Griswold Community School District / 3,404 |
| 250. | 0.1% | Ballard Community School District / 7,081 |
| 252. | 0.1% | Muscatine Community School District / 29,190 |
| 253. | 0.1% | South Winneshiek Community School District / 4,523 |
| 253. | 0.1% | West Delaware County Community School District / 9,003 |
| 255. | 0.0% | Howard-Winneshiek Community School District / 9,042 |
| 255. | 0.0% | Denison Community School District / 10,354 |
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.
