Local Data Search
A total of 99 results found. Show Results on Map.
| Rank | Median Age ▲ | County / Population |
| 1. | 26.40 | Story, IA / 87,594 |
| 2. | 28.80 | Johnson, IA / 126,994 |
| 3. | 32.70 | Sioux, IA / 33,377 |
| 4. | 34.30 | Dallas, IA / 61,714 |
| 5. | 34.70 | Black Hawk, IA / 129,252 |
| 6. | 34.80 | Polk, IA / 419,301 |
| 7. | 35.40 | Woodbury, IA / 101,217 |
| 8. | 36.50 | Linn, IA / 207,765 |
| 9. | 36.90 | Buena Vista, IA / 19,980 |
| 10. | 37.40 | Scott, IA / 162,184 |
| 11. | 38.00 | Muscatine, IA / 42,501 |
| 11. | 38.00 | Warren, IA / 45,346 |
| 13. | 38.20 | Dubuque, IA / 92,547 |
| 13. | 38.20 | Pottawattamie, IA / 91,928 |
| 15. | 38.30 | Louisa, IA / 11,683 |
| 16. | 38.40 | Buchanan, IA / 21,026 |
| 17. | 38.70 | Marion, IA / 33,378 |
| 17. | 38.70 | Decatur, IA / 8,508 |
| 17. | 38.70 | Lyon, IA / 11,564 |
| 20. | 38.80 | Bremer, IA / 24,185 |
| 21. | 38.90 | Crawford, IA / 16,951 |
| 22. | 39.00 | Mahaska, IA / 22,382 |
| 23. | 39.10 | Henry, IA / 20,263 |
| 24. | 39.20 | Winneshiek, IA / 21,031 |
| 25. | 39.30 | Madison, IA / 15,488 |
| 26. | 39.40 | Marshall, IA / 40,131 |
| 27. | 39.60 | Davis, IA / 8,687 |
| 28. | 39.80 | Wapello, IA / 35,553 |
| 29. | 39.90 | Webster, IA / 38,286 |
| 30. | 40.00 | Benton, IA / 26,098 |
| 31. | 40.20 | Boone, IA / 26,424 |
| 32. | 40.70 | Emmet, IA / 10,389 |
| 33. | 40.90 | Hamilton, IA / 15,874 |
| 33. | 40.90 | Delaware, IA / 17,857 |
| 33. | 40.90 | Clarke, IA / 9,218 |
| 36. | 41.10 | Clinton, IA / 49,274 |
| 36. | 41.10 | Washington, IA / 21,626 |
| 36. | 41.10 | Mills, IA / 15,157 |
| 39. | 41.30 | Howard, IA / 9,610 |
| 40. | 41.40 | Jasper, IA / 37,050 |
| 40. | 41.40 | Union, IA / 12,409 |
| 42. | 41.50 | Plymouth, IA / 24,933 |
| 42. | 41.50 | Des Moines, IA / 40,266 |
| 44. | 41.60 | Poweshiek, IA / 19,012 |
| 45. | 41.70 | Tama, IA / 17,952 |
| 46. | 41.80 | Iowa, IA / 16,353 |
| 47. | 41.90 | Lee, IA / 35,991 |
| 48. | 42.00 | Harrison, IA / 15,073 |
| 48. | 42.00 | Osceola, IA / 6,576 |
| 50. | 42.10 | Cedar, IA / 18,414 |
| 51. | 42.20 | Carroll, IA / 20,805 |
| 52. | 42.40 | Palo Alto, IA / 9,508 |
| 52. | 42.40 | Fayette, IA / 20,992 |
| 52. | 42.40 | Jones, IA / 20,708 |
| 55. | 42.50 | Grundy, IA / 12,401 |
| 56. | 42.60 | Clay, IA / 16,718 |
| 57. | 42.70 | Keokuk, IA / 10,614 |
| 57. | 42.70 | Cerro Gordo, IA / 44,324 |
| 59. | 42.90 | Lucas, IA / 9,116 |
| 59. | 42.90 | Jackson, IA / 19,942 |
| 61. | 43.10 | Monroe, IA / 7,918 |
| 62. | 43.30 | Floyd, IA / 16,394 |
| 62. | 43.30 | Franklin, IA / 10,697 |
| 64. | 43.40 | Appanoose, IA / 13,029 |
| 64. | 43.40 | Butler, IA / 14,892 |
| 64. | 43.40 | Allamakee, IA / 14,331 |
| 67. | 43.50 | Hardin, IA / 17,685 |
| 67. | 43.50 | Winnebago, IA / 10,962 |
| 67. | 43.50 | Page, IA / 16,095 |
| 67. | 43.50 | Mitchell, IA / 10,801 |
| 71. | 43.80 | Van Buren, IA / 7,645 |
| 71. | 43.80 | Chickasaw, IA / 12,499 |
| 73. | 43.90 | Montgomery, IA / 10,901 |
| 74. | 44.00 | Clayton, IA / 18,202 |
| 74. | 44.00 | Wright, IA / 13,384 |
| 74. | 44.00 | Worth, IA / 7,628 |
| 77. | 44.10 | Hancock, IA / 11,505 |
| 78. | 44.20 | Humboldt, IA / 9,905 |
| 78. | 44.20 | Ida, IA / 7,172 |
| 78. | 44.20 | Guthrie, IA / 11,040 |
| 81. | 44.40 | Obrien, IA / 14,419 |
| 82. | 44.50 | Fremont, IA / 7,528 |
| 82. | 44.50 | Taylor, IA / 6,402 |
| 84. | 44.60 | Cass, IA / 13,969 |
| 85. | 44.70 | Shelby, IA / 12,328 |
| 86. | 44.80 | Adair, IA / 7,779 |
| 87. | 44.90 | Greene, IA / 9,448 |
| 87. | 44.90 | Jefferson, IA / 16,643 |
| 89. | 45.10 | Ringgold, IA / 5,169 |
| 90. | 45.70 | Adams, IA / 4,127 |
| 90. | 45.70 | Wayne, IA / 6,404 |
| 92. | 45.90 | Sac, IA / 10,480 |
| 93. | 46.00 | Audubon, IA / 6,186 |
| 94. | 46.20 | Monona, IA / 9,346 |
| 94. | 46.20 | Kossuth, IA / 15,748 |
| 96. | 46.80 | Dickinson, IA / 16,665 |
| 97. | 46.90 | Cherokee, IA / 12,086 |
| 98. | 47.00 | Pocahontas, IA / 7,509 |
| 99. | 47.50 | Calhoun, IA / 9,846 |
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.