| Rank | Percentage of Population Age 45 to 54 ▼ | School District / Population |
| 1. | 20.1% | Maquoketa Valley Community School District / 4,585 |
| 2. | 19.0% | Farragut Community School District / 1,445 |
| 3. | 19.0% | Solon Community School District / 6,168 |
| 4. | 18.9% | Lu Verne Community School District / 534 |
| 5. | 18.9% | Anita Community School District / 1,759 |
| 6. | 18.8% | Glidden-Ralston Community School District / 1,883 |
| 6. | 18.8% | Prescott Community School District / 601 |
| 8. | 18.7% | West Central Community School District / 1,877 |
| 9. | 18.6% | Van Meter Community School District / 2,824 |
| 10. | 18.6% | Alburnett Community School District / 3,267 |
| 11. | 18.5% | Woden-Crystal Lake Community School District / 912 |
| 12. | 18.5% | Aurelia Community School District / 1,658 |
| 13. | 18.5% | Laurens-Marathon Community School District / 2,114 |
| 14. | 18.5% | Ventura Community School District / 1,834 |
| 15. | 18.5% | Sentral Community School District / 1,110 |
| 16. | 18.4% | Gilmore City-Bradgate Community School District / 928 |
| 17. | 18.4% | Turkey Valley Community School District / 3,057 |
| 18. | 18.4% | H-L-V Community School District / 2,172 |
| 19. | 18.2% | South Hamilton Community School District / 3,802 |
| 20. | 18.1% | Martensdale-St. Marys Community School District / 2,866 |
| 21. | 18.1% | Ar-We-Va Community School District / 2,099 |
| 22. | 18.0% | North Winneshiek Community School District / 1,829 |
| 23. | 18.0% | Corwith-Wesley Community School District / 1,057 |
| 24. | 18.0% | West Harrison Community School District / 2,700 |
| 25. | 17.9% | Stanton Community School District / 1,143 |
| 26. | 17.9% | Lawton-Bronson Community School District / 3,308 |
| 27. | 17.9% | Central City Community School District / 2,813 |
| 28. | 17.8% | Olin Consolidated School District / 1,516 |
| 29. | 17.7% | Louisa-Muscatine Community School District / 4,280 |
| 29. | 17.7% | Clay Central-Everly Community School District / 2,301 |
| 31. | 17.7% | Central Lee Community School District / 5,363 |
| 31. | 17.7% | Waco Community School District / 3,049 |
| 33. | 17.7% | Northeast Community School District / 3,041 |
| 34. | 17.6% | Charter Oak-Ute Community School District / 1,933 |
| 35. | 17.5% | Southeast Webster-Grand Community School District / 3,439 |
| 36. | 17.5% | East Greene Community School District / 1,803 |
| 36. | 17.5% | South Page Community School District / 1,448 |
| 38. | 17.5% | Anthon-Oto Community School District / 1,381 |
| 39. | 17.4% | Tri-County Community School District / 1,813 |
| 40. | 17.4% | Orient-Macksburg Community School District / 1,378 |
| 41. | 17.4% | United Community School District / 2,243 |
| 42. | 17.4% | Saydel Community School District / 8,830 |
| 43. | 17.3% | Underwood Community School District / 3,930 |
| 44. | 17.3% | Marcus-Meriden-Cleghorn Community School District / 2,860 |
| 45. | 17.3% | Newell-Fonda Community School District / 2,463 |
| 45. | 17.3% | Durant Community School District / 3,069 |
| 47. | 17.3% | Belle Plaine Community School District / 3,528 |
| 48. | 17.3% | Hartley-Melvin-Sanborn Community School District / 4,601 |
| 49. | 17.3% | West Branch Community School District / 4,574 |
| 49. | 17.3% | Griswold Community School District / 3,434 |
| 51. | 17.3% | Dunkerton Community School District / 2,566 |
| 52. | 17.2% | Ogden Community School District / 3,641 |
| 53. | 17.2% | Clear Lake Community School District / 8,522 |
| 54. | 17.2% | Springville Community School District / 2,459 |
| 55. | 17.1% | Prairie Valley Community School District / 3,851 |
| 55. | 17.1% | East Marshall Community School District / 3,886 |
| 57. | 17.1% | Midland Community School District / 3,642 |
| 58. | 17.1% | Pocahontas Area Community School District / 3,593 |
| 58. | 17.1% | Clayton Ridge Community School District / 5,057 |
| 60. | 17.1% | Twin Cedars Community School District / 2,402 |
| 61. | 17.1% | Glenwood Community School District / 11,146 |
| 62. | 17.1% | Wilton Community School District / 4,528 |
| 62. | 17.1% | Central Community School District / 3,402 |
| 64. | 17.0% | English Valleys Community School District / 3,028 |
| 65. | 17.0% | South Winneshiek Community School District / 4,361 |
| 66. | 17.0% | Colfax-Mingo Community School District / 4,409 |
| 67. | 16.9% | Sac Community School District / 2,765 |
| 68. | 16.9% | Logan-Magnolia Community School District / 3,163 |
| 68. | 16.9% | East Buchanan Community School District / 2,961 |
| 70. | 16.8% | Woodward-Granger Community School District / 5,052 |
| 70. | 16.8% | Benton Community School District / 9,140 |
| 72. | 16.8% | Eddyville-Blakesburg Community School District / 4,054 |
| 73. | 16.8% | Interstate 35 Community School District / 4,599 |
| 74. | 16.8% | Adair-Casey Community School District / 2,014 |
| 75. | 16.8% | Corning Community School District / 2,914 |
| 75. | 16.8% | Highland Community School District / 3,719 |
| 75. | 16.8% | Baxter Community School District / 1,899 |
| 78. | 16.7% | Vinton-Shellsburg Community School District / 10,406 |
| 79. | 16.7% | Andrew Community School District / 1,584 |
| 80. | 16.7% | A-H-S-T Community School District / 3,601 |
| 80. | 16.7% | Manson Northwest Webster Community School District / 4,144 |
| 82. | 16.7% | Exira Community School District / 1,796 |
| 82. | 16.7% | North Central Community School District / 3,018 |
| 84. | 16.7% | MFL MarMac Community School District / 5,385 |
| 85. | 16.7% | Sioux Central Community School District / 2,478 |
| 86. | 16.7% | East Central Community School District / 2,263 |
| 87. | 16.7% | Rockwell-Swaledale Community School District / 1,970 |
| 88. | 16.6% | West Bend-Mallard Community School District / 2,020 |
| 89. | 16.6% | Titonka Consolidated School District / 1,017 |
| 89. | 16.6% | Woodbine Community School District / 2,467 |
| 91. | 16.6% | Valley Community School District / 2,820 |
| 92. | 16.6% | Anamosa Community School District / 9,447 |
| 92. | 16.6% | South Clay Community School District / 910 |
| 92. | 16.6% | Tri-Center Community School District / 3,635 |
| 95. | 16.6% | Lynnville-Sully Community School District / 2,846 |
| 95. | 16.6% | Treynor Community School District / 3,064 |
| 97. | 16.6% | Harlan Community School District / 8,688 |
| 98. | 16.5% | Hubbard-Radcliffe Community School District / 2,654 |
| 98. | 16.5% | Williamsburg Community School District / 6,131 |
| 100. | 16.5% | Hudson Community School District / 3,709 |
| 101. | 16.5% | Nodaway Valley Community School District / 4,351 |
| 101. | 16.5% | Pleasant Valley Community School District / 20,868 |
| 103. | 16.5% | Preston Community School District / 1,842 |
| 103. | 16.5% | Twin Rivers Community School District / 1,155 |
| 103. | 16.5% | Stratford Community School District / 1,307 |
| 106. | 16.4% | Woodbury Central Community School District / 2,851 |
| 107. | 16.4% | Sigourney Community School District / 3,596 |
| 108. | 16.4% | North Scott Community School District / 15,203 |
| 109. | 16.4% | Brooklyn-Guernsey-Malcom Community School District / 3,347 |
| 109. | 16.4% | West Central Valley Community School District / 5,805 |
| 111. | 16.4% | AGWSR Community School District / 4,513 |
| 112. | 16.3% | BCLUW Community School District / 3,416 |
| 113. | 16.3% | Terril Community School District / 993 |
| 114. | 16.3% | St. Ansgar Community School District / 3,987 |
| 114. | 16.3% | IKM Community School District / 2,282 |
| 116. | 16.3% | Manning Community School District / 2,240 |
| 117. | 16.3% | Missouri Valley Community School District / 5,332 |
| 118. | 16.3% | Adel-De Soto-Minburn Community School District / 7,832 |
| 119. | 16.3% | Hinton Community School District / 3,045 |
| 119. | 16.3% | North Kossuth Community School District / 2,239 |
| 119. | 16.3% | GMG Community School District / 1,888 |
| 122. | 16.3% | North Cedar Community School District / 5,263 |
| 122. | 16.3% | Elk Horn-Kimballton Community School District / 1,557 |
| 124. | 16.2% | Villisca Community School District / 2,173 |
| 124. | 16.2% | Colo-Nesco Community School District / 2,961 |
| 124. | 16.2% | Central Clinton Community School District / 9,293 |
| 127. | 16.2% | Bellevue Community School District / 4,425 |
| 128. | 16.1% | Lineville-Clio Community School District / 533 |
| 129. | 16.1% | Fort Madison Community School District / 17,311 |
| 130. | 16.1% | Camanche Community School District / 5,293 |
| 131. | 16.1% | Tripoli Community School District / 2,524 |
| 132. | 16.1% | Howard-Winneshiek Community School District / 9,186 |
| 133. | 16.1% | Nevada Community School District / 8,476 |
| 134. | 16.0% | Nishna Valley Community School District / 1,334 |
| 135. | 16.0% | Delwood Community School District / 1,223 |
| 135. | 16.0% | Forest City Community School District / 6,814 |
| 135. | 16.0% | Le Mars Community School District / 13,465 |
| 138. | 16.0% | Maquoketa Community School District / 9,080 |
| 138. | 16.0% | Dike-New Hartford Community School District / 4,338 |
| 140. | 16.0% | Westwood Community School District / 3,288 |
| 140. | 16.0% | Alta Community School District / 2,888 |
| 142. | 16.0% | Lisbon Community School District / 3,255 |
| 143. | 16.0% | West Delaware County Community School District / 9,509 |
| 143. | 16.0% | Danville Community School District / 2,680 |
| 143. | 16.0% | Lone Tree Community School District / 2,461 |
| 146. | 16.0% | Albert City-Truesdale Community School District / 1,472 |
| 147. | 16.0% | Bennett Community School District / 1,279 |
| 147. | 16.0% | Mormon Trail Community School District / 1,636 |
| 149. | 15.9% | Eastern Allamakee Community School District / 2,730 |
| 150. | 15.9% | Algona Community School District / 9,173 |
| 151. | 15.9% | Tipton Community School District / 5,073 |
| 152. | 15.9% | New Hampton Community School District / 6,942 |
| 152. | 15.9% | Northeast Hamilton Community School District / 1,441 |
| 154. | 15.9% | Wayne Community School District / 3,522 |
| 154. | 15.9% | Lake Mills Community School District / 3,888 |
| 154. | 15.9% | Pleasantville Community School District / 3,427 |
| 157. | 15.8% | Belmond-Klemme Community School District / 4,412 |
| 157. | 15.8% | Walnut Community School District / 1,193 |
| 157. | 15.8% | PCM Community School District / 5,681 |
| 157. | 15.8% | North Polk Community School District / 6,345 |
| 161. | 15.8% | Schleswig Community School District / 1,670 |
| 162. | 15.8% | Gilbert Community School District / 6,438 |
| 162. | 15.8% | Humboldt Community School District / 7,582 |
| 164. | 15.8% | Center Point-Urbana Community School District / 6,053 |
| 164. | 15.8% | Schaller-Crestland Community School District / 2,268 |
| 164. | 15.8% | Montezuma Community School District / 3,499 |
| 167. | 15.8% | Southeast Warren Community School District / 3,051 |
| 167. | 15.8% | Rudd-Rockford-Marble Rock Community School District / 2,930 |
| 169. | 15.7% | Johnston Community School District / 31,193 |
| 170. | 15.7% | Winfield-Mount Union Community School District / 1,910 |
| 171. | 15.7% | Nora Springs-Rock Falls Community School District / 2,466 |
| 172. | 15.7% | Cardinal Community School District / 3,896 |
| 173. | 15.7% | Northwood-Kensett Community School District / 3,375 |
| 173. | 15.7% | Calamus-Wheatland Community School District / 2,502 |
| 173. | 15.7% | Lewis Central Community School District / 15,299 |
| 176. | 15.7% | Rockwell City-Lytton Community School District / 3,084 |
| 177. | 15.7% | Nashua-Plainfield Community School District / 4,147 |
| 177. | 15.7% | Fredericksburg Community School District / 1,700 |
| 179. | 15.6% | Cal Community School District / 1,606 |
| 179. | 15.6% | Gladbrook-Reinbeck Community School District / 4,260 |
| 179. | 15.6% | Starmont Community School District / 3,896 |
| 179. | 15.6% | Sergeant Bluff-Luton Community School District / 5,996 |
| 183. | 15.6% | Osage Community School District / 6,096 |
| 183. | 15.6% | Garner-Hayfield Community School District / 4,033 |
| 183. | 15.6% | Bedford Community School District / 2,894 |
| 186. | 15.6% | Harris-Lake Park Community School District / 1,813 |
| 187. | 15.6% | Norwalk Community School District / 11,129 |
| 188. | 15.6% | Roland-Story Community School District / 5,761 |
| 188. | 15.6% | Audubon Community School District / 3,598 |
| 190. | 15.6% | Cherokee Community School District / 6,578 |
| 191. | 15.5% | Centerville Community School District / 9,212 |
| 192. | 15.5% | Carroll Community School District / 14,441 |
| 192. | 15.5% | Panorama Community School District / 4,664 |
| 194. | 15.5% | Newton Community School District / 21,271 |
| 194. | 15.5% | Fremont Community School District / 1,135 |
| 194. | 15.5% | Murray Community School District / 1,541 |
| 197. | 15.5% | Clarinda Community School District / 6,873 |
| 197. | 15.5% | Mediapolis Community School District / 4,814 |
| 197. | 15.5% | Coon Rapids-Bayard Community School District / 2,632 |
| 200. | 15.5% | Sibley-Ocheyedan Community School District / 4,733 |
| 201. | 15.5% | Riverside Community School District / 3,951 |
| 202. | 15.4% | Jefferson-Scranton Community School District / 6,127 |
| 202. | 15.4% | Iowa Valley Community School District / 3,679 |
| 204. | 15.4% | Dows Community School District / 972 |
| 205. | 15.4% | North Iowa Community School District / 3,210 |
| 205. | 15.4% | Morning Sun Community School District / 1,239 |
| 205. | 15.4% | North Mahaska Community School District / 2,945 |
| 208. | 15.4% | Independence Community School District / 9,100 |
| 208. | 15.4% | Akron-Westfield Community School District / 3,150 |
| 210. | 15.4% | Melcher-Dallas Community School District / 1,962 |
| 210. | 15.4% | Alden Community School District / 1,572 |
| 212. | 15.4% | Boyer Valley Community School District / 2,699 |
| 213. | 15.4% | Essex Community School District / 1,340 |
| 214. | 15.4% | Allamakee Community School District / 8,992 |
| 214. | 15.4% | Odebolt-Arthur Community School District / 2,006 |
| 216. | 15.3% | Jesup Community School District / 5,094 |
| 216. | 15.3% | Bettendorf Community School District / 21,800 |
| 216. | 15.3% | Sheffield Chapin Meservey Thornton Community School District / 2,982 |
| 219. | 15.3% | Galva-Holstein Community School District / 2,673 |
| 219. | 15.3% | Whiting Community School District / 1,170 |
| 221. | 15.3% | Southern Cal Community School District / 3,192 |
| 222. | 15.3% | Urbandale Community School District / 20,971 |
| 223. | 15.3% | East Union Community School District / 3,035 |
| 223. | 15.3% | River Valley Community School District / 2,753 |
| 223. | 15.3% | Remsen-Union Community School District / 2,989 |
| 226. | 15.3% | Keota Community School District / 2,040 |
| 226. | 15.3% | South O'Brien Community School District / 4,478 |
| 226. | 15.3% | Winterset Community School District / 9,444 |
| 229. | 15.2% | West Monona Community School District / 4,180 |
| 229. | 15.2% | Clinton Community School District / 26,478 |
| 229. | 15.2% | Western Dubuque Community School District / 21,320 |
| 232. | 15.2% | Chariton Community School District / 7,354 |
| 232. | 15.2% | West Burlington Independent School District / 2,806 |
| 232. | 15.2% | Moravia Community School District / 2,089 |
| 235. | 15.2% | Spirit Lake Community School District / 7,836 |
| 236. | 15.2% | Madrid Community School District / 3,536 |
| 237. | 15.2% | Earlham Community School District / 2,924 |
| 238. | 15.2% | Fremont-Mills Community School District / 2,432 |
| 239. | 15.1% | Okoboji Community School District / 6,831 |
| 240. | 15.1% | Columbus Community School District / 4,492 |
| 241. | 15.1% | Greene Community School District / 2,045 |
| 242. | 15.1% | Malvern Community School District / 2,003 |
| 242. | 15.1% | Denver Community School District / 3,847 |
| 244. | 15.1% | Mason City Community School District / 29,170 |
| 245. | 15.0% | Harmony Community School District / 2,580 |
| 245. | 15.0% | Clarksville Community School District / 2,161 |
| 247. | 15.0% | Battle Creek-Ida Grove Community School District / 3,905 |
| 247. | 15.0% | Collins-Maxwell Community School District / 2,751 |
| 249. | 15.0% | Monticello Community School District / 6,519 |
| 249. | 15.0% | Paton-Churdan Community School District / 1,147 |
| 249. | 15.0% | West Marshall Community School District / 4,766 |
| 252. | 15.0% | Knoxville Community School District / 11,461 |
| 252. | 15.0% | Wall Lake View Auburn Community School District / 3,363 |
| 254. | 15.0% | Janesville Consolidated School District / 2,375 |
| 254. | 15.0% | C and M Community School District / 1,251 |
| 256. | 14.9% | Eagle Grove Community School District / 4,929 |
| 257. | 14.9% | Union Community School District / 6,214 |
| 258. | 14.9% | Sidney Community School District / 2,072 |
| 259. | 14.9% | Red Oak Community School District / 7,118 |
| 259. | 14.9% | North Fayette Community School District / 6,282 |
| 261. | 14.8% | Wapello Community School District / 3,768 |
| 261. | 14.8% | Atlantic Community School District / 8,807 |
| 263. | 14.8% | Pekin Community School District / 3,728 |
| 263. | 14.8% | Webster City Community School District / 9,820 |
| 263. | 14.8% | Armstrong-Ringsted Community School District / 2,091 |
| 266. | 14.8% | Boone Community School District / 14,454 |
| 267. | 14.8% | Postville Community School District / 3,612 |
| 268. | 14.7% | Russell Community School District / 1,065 |
| 268. | 14.7% | West Des Moines Community School District / 64,104 |
| 270. | 14.7% | Emmetsburg Community School District / 4,991 |
| 271. | 14.7% | Moulton-Udell Community School District / 1,466 |
| 271. | 14.7% | Maple Valley Community School District / 2,951 |
| 273. | 14.7% | Eldora-New Providence Community School District / 3,990 |
| 274. | 14.6% | Mount Pleasant Community School District / 13,009 |
| 275. | 14.6% | Dallas Center-Grimes Community School District / 9,527 |
| 275. | 14.6% | Clarke Community School District / 7,993 |
| 277. | 14.6% | Wapsie Valley Community School District / 3,885 |
| 277. | 14.6% | Sheldon Community School District / 7,323 |
| 279. | 14.6% | Dubuque Community School District / 75,725 |
| 280. | 14.6% | Riceville Community School District / 2,667 |
| 281. | 14.5% | Southeast Polk Community School District / 31,979 |
| 281. | 14.5% | Lenox Community School District / 2,106 |
| 283. | 14.5% | Cedar Rapids Community School District / 119,310 |
| 284. | 14.5% | Spencer Community School District / 12,176 |
| 285. | 14.5% | Muscatine Community School District / 29,454 |
| 286. | 14.5% | West Liberty Community School District / 6,211 |
| 287. | 14.5% | Creston Community School District / 9,722 |
| 287. | 14.5% | Council Bluffs Community School District / 59,804 |
| 289. | 14.4% | West Hancock Community School District / 3,893 |
| 290. | 14.4% | South Tama County Community School District / 9,011 |
| 291. | 14.4% | Edgewood-Colesburg Community School District / 3,186 |
| 292. | 14.4% | Burlington Community School District / 29,942 |
| 292. | 14.4% | Pomeroy-Palmer Community School District / 1,528 |
| 294. | 14.4% | Mid-Prairie Community School District / 9,085 |
| 295. | 14.3% | Ruthven-Ayrshire Community School District / 1,548 |
| 295. | 14.3% | George-Little Rock Community School District / 2,664 |
| 297. | 14.3% | Diagonal Community School District / 685 |
| 298. | 14.3% | Ballard Community School District / 7,412 |
| 299. | 14.3% | Clarion-Goldfield Community School District / 4,752 |
| 300. | 14.3% | Kingsley-Pierson Community School District / 2,482 |
| 301. | 14.3% | North Linn Community School District / 3,740 |
| 302. | 14.2% | Indianola Community School District / 19,742 |
| 303. | 14.2% | Ottumwa Community School District / 29,183 |
| 304. | 14.1% | Keokuk Community School District / 12,959 |
| 304. | 14.1% | Oskaloosa Community School District / 16,046 |
| 306. | 14.1% | Seymour Community School District / 2,273 |
| 307. | 14.1% | Central Lyon Community School District / 4,333 |
| 307. | 14.1% | Perry Community School District / 9,469 |
| 309. | 14.1% | Washington Community School District / 10,116 |
| 310. | 14.1% | Linn-Mar Community School District / 36,539 |
| 310. | 14.1% | Davenport Community School District / 106,742 |
| 310. | 14.1% | Graettinger Community School District / 1,367 |
| 313. | 14.0% | Hampton-Dumont Community School District / 6,933 |
| 314. | 14.0% | Aplington-Parkersburg Community School District / 4,547 |
| 315. | 14.0% | Albia Community School District / 7,304 |
| 316. | 14.0% | Davis County Community School District / 8,512 |
| 317. | 13.9% | Van Buren Community School District / 5,370 |
| 318. | 13.9% | Estherville Lincoln Central Community School District / 8,215 |
| 319. | 13.9% | Hamburg Community School District / 1,671 |
| 319. | 13.9% | Mount Vernon Community School District / 6,367 |
| 319. | 13.9% | Carlisle Community School District / 8,414 |
| 322. | 13.9% | Fort Dodge Community School District / 29,627 |
| 322. | 13.9% | Sumner Community School District / 3,274 |
| 324. | 13.8% | Mount Ayr Community School District / 4,180 |
| 325. | 13.8% | New Market Community School District / 957 |
| 326. | 13.8% | Marion Independent School District / 11,990 |
| 327. | 13.8% | Iowa Falls Community School District / 6,941 |
| 327. | 13.8% | Charles City Community School District / 11,362 |
| 329. | 13.8% | New London Community School District / 3,092 |
| 329. | 13.8% | Allison-Bristow Community School District / 1,877 |
| 331. | 13.7% | Grinnell-Newburg Community School District / 12,151 |
| 332. | 13.7% | West Sioux Community School District / 4,206 |
| 333. | 13.7% | Fairfield Community School District / 15,529 |
| 334. | 13.6% | Shenandoah Community School District / 6,281 |
| 335. | 13.6% | Bondurant-Farrar Community School District / 6,275 |
| 336. | 13.6% | Pella Community School District / 15,410 |
| 337. | 13.5% | Oelwein Community School District / 9,134 |
| 338. | 13.5% | Guthrie Center Community School District / 2,648 |
| 339. | 13.5% | MOC-Floyd Valley Community School District / 10,808 |
| 340. | 13.5% | College Community School District / 23,720 |
| 340. | 13.5% | Grundy Center Community School District / 3,788 |
| 342. | 13.5% | Des Moines Independent Community School District / 203,307 |
| 342. | 13.5% | Waterloo Community School District / 78,321 |
| 344. | 13.4% | Marshalltown Community School District / 30,561 |
| 345. | 13.4% | Storm Lake Community School District / 12,237 |
| 345. | 13.4% | Central Decatur Community School District / 4,283 |
| 347. | 13.1% | West Lyon Community School District / 4,519 |
| 348. | 13.0% | Clear Creek-Amana Community School District / 11,999 |
| 349. | 13.0% | Sioux City Community School District / 83,145 |
| 350. | 13.0% | North Tama County Community School District / 3,111 |
| 351. | 12.8% | Boyden-Hull Community School District / 4,259 |
| 352. | 12.7% | Denison Community School District / 10,419 |
| 353. | 12.6% | Clearfield Community School District / 627 |
| 354. | 12.5% | Ankeny Community School District / 49,827 |
| 355. | 12.4% | Waverly-Shell Rock Community School District / 13,798 |
| 356. | 12.3% | Decorah Community School District / 11,998 |
| 357. | 12.1% | Rock Valley Community School District / 4,924 |
| 358. | 11.5% | Sioux Center Community School District / 8,882 |
| 359. | 11.3% | Waukee Community School District / 37,076 |
| 360. | 10.6% | Iowa City Community School District / 105,355 |
| 361. | 10.3% | Cedar Falls Community School District / 40,251 |
| 362. | 10.0% | Lamoni Community School District / 3,077 |
| 363. | 7.5% | Ames Community School District / 56,434 |
Please note that we only rank locations with 'Percentage of Population Age 45 to 54' data. The rank above might not be a complete list. Locations without 'Percentage of Population Age 45 to 54' data are not listed.
