Local Data Search
A total of 99 results found. Show Results on Map.
| Rank | Median Age ▲ | County / Population |
| 1. | 26.50 | Story, IA / 89,734 |
| 2. | 29.30 | Johnson, IA / 131,627 |
| 3. | 32.90 | Sioux, IA / 33,776 |
| 4. | 34.30 | Dallas, IA / 66,997 |
| 5. | 34.60 | Black Hawk, IA / 130,843 |
| 6. | 34.70 | Polk, IA / 431,811 |
| 7. | 35.20 | Woodbury, IA / 101,948 |
| 8. | 36.50 | Buena Vista, IA / 20,215 |
| 9. | 36.70 | Linn, IA / 211,954 |
| 10. | 37.40 | Scott, IA / 165,432 |
| 11. | 38.00 | Muscatine, IA / 42,729 |
| 11. | 38.00 | Crawford, IA / 17,100 |
| 13. | 38.30 | Bremer, IA / 24,294 |
| 13. | 38.30 | Lyon, IA / 11,623 |
| 15. | 38.40 | Decatur, IA / 8,382 |
| 16. | 38.50 | Pottawattamie, IA / 92,793 |
| 16. | 38.50 | Warren, IA / 46,239 |
| 18. | 38.60 | Davis, IA / 8,718 |
| 19. | 38.70 | Dubuque, IA / 93,776 |
| 20. | 38.80 | Marion, IA / 33,388 |
| 21. | 38.90 | Buchanan, IA / 20,988 |
| 22. | 39.30 | Louisa, IA / 11,448 |
| 22. | 39.30 | Mahaska, IA / 22,432 |
| 24. | 39.40 | Madison, IA / 15,630 |
| 24. | 39.40 | Marshall, IA / 40,568 |
| 26. | 39.80 | Henry, IA / 20,242 |
| 27. | 39.90 | Wapello, IA / 35,449 |
| 28. | 40.00 | Webster, IA / 37,895 |
| 29. | 40.20 | Winneshiek, IA / 21,033 |
| 29. | 40.20 | Emmet, IA / 10,263 |
| 31. | 40.40 | Benton, IA / 26,044 |
| 32. | 40.90 | Boone, IA / 26,324 |
| 33. | 41.30 | Poweshiek, IA / 18,888 |
| 34. | 41.40 | Mills, IA / 15,028 |
| 35. | 41.50 | Union, IA / 12,525 |
| 35. | 41.50 | Clarke, IA / 9,286 |
| 37. | 41.60 | Clinton, IA / 49,074 |
| 38. | 41.70 | Jasper, IA / 36,823 |
| 39. | 41.80 | Des Moines, IA / 40,268 |
| 40. | 41.90 | Washington, IA / 21,765 |
| 40. | 41.90 | Delaware, IA / 17,721 |
| 42. | 42.10 | Hamilton, IA / 15,614 |
| 42. | 42.10 | Tama, IA / 17,746 |
| 44. | 42.30 | Iowa, IA / 16,320 |
| 44. | 42.30 | Fayette, IA / 20,894 |
| 46. | 42.40 | Howard, IA / 9,568 |
| 46. | 42.40 | Lee, IA / 35,741 |
| 48. | 42.50 | Carroll, IA / 20,751 |
| 48. | 42.50 | Grundy, IA / 12,431 |
| 48. | 42.50 | Plymouth, IA / 24,911 |
| 51. | 42.70 | Jones, IA / 20,686 |
| 51. | 42.70 | Harrison, IA / 14,838 |
| 53. | 42.80 | Palo Alto, IA / 9,402 |
| 53. | 42.80 | Clay, IA / 16,649 |
| 53. | 42.80 | Cedar, IA / 18,446 |
| 56. | 43.00 | Franklin, IA / 10,650 |
| 57. | 43.30 | Monroe, IA / 7,979 |
| 57. | 43.30 | Osceola, IA / 6,413 |
| 59. | 43.40 | Cerro Gordo, IA / 44,083 |
| 60. | 43.60 | Butler, IA / 14,899 |
| 60. | 43.60 | Floyd, IA / 16,204 |
| 60. | 43.60 | Hardin, IA / 17,479 |
| 60. | 43.60 | Keokuk, IA / 10,480 |
| 64. | 43.80 | Lucas, IA / 8,913 |
| 64. | 43.80 | Van Buren, IA / 7,565 |
| 64. | 43.80 | Page, IA / 15,902 |
| 64. | 43.80 | Winnebago, IA / 10,800 |
| 68. | 43.90 | Jackson, IA / 19,807 |
| 68. | 43.90 | Worth, IA / 7,581 |
| 68. | 43.90 | Chickasaw, IA / 12,409 |
| 71. | 44.00 | Jefferson, IA / 16,791 |
| 72. | 44.20 | Allamakee, IA / 14,285 |
| 72. | 44.20 | Appanoose, IA / 12,858 |
| 74. | 44.30 | Taylor, IA / 6,292 |
| 75. | 44.40 | Obrien, IA / 14,302 |
| 75. | 44.40 | Wright, IA / 13,173 |
| 75. | 44.40 | Humboldt, IA / 9,818 |
| 78. | 44.60 | Mitchell, IA / 10,761 |
| 79. | 44.70 | Clayton, IA / 18,056 |
| 79. | 44.70 | Hancock, IA / 11,320 |
| 81. | 44.80 | Cass, IA / 13,865 |
| 81. | 44.80 | Ida, IA / 7,113 |
| 83. | 44.90 | Guthrie, IA / 10,915 |
| 84. | 45.10 | Greene, IA / 9,304 |
| 85. | 45.20 | Montgomery, IA / 10,710 |
| 86. | 45.40 | Adair, IA / 7,628 |
| 86. | 45.40 | Ringgold, IA / 5,123 |
| 86. | 45.40 | Wayne, IA / 6,372 |
| 86. | 45.40 | Fremont, IA / 7,373 |
| 90. | 45.80 | Shelby, IA / 12,158 |
| 91. | 46.30 | Sac, IA / 10,307 |
| 92. | 46.50 | Adams, IA / 4,027 |
| 93. | 46.70 | Audubon, IA / 6,077 |
| 94. | 46.80 | Monona, IA / 9,242 |
| 95. | 46.90 | Kossuth, IA / 15,510 |
| 96. | 47.30 | Cherokee, IA / 12,011 |
| 96. | 47.30 | Pocahontas, IA / 7,307 |
| 98. | 47.50 | Calhoun, IA / 9,936 |
| 99. | 48.30 | Dickinson, IA / 16,778 |
Please note that we only rank locations with 'Median Age' data. The rank above might not be a complete list. Locations without 'Median Age' 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.