Local Data Search
A total of 99 results found. Show Results on Map.
| Rank | Median Age ▲ | County / Population |
| 1. | 26.50 | Story, IA / 91,939 |
| 2. | 29.70 | Johnson, IA / 136,802 |
| 3. | 33.20 | Sioux, IA / 34,261 |
| 4. | 34.60 | Dallas, IA / 72,124 |
| 4. | 34.60 | Black Hawk, IA / 131,947 |
| 6. | 34.90 | Polk, IA / 445,136 |
| 7. | 35.40 | Woodbury, IA / 102,372 |
| 8. | 36.80 | Buena Vista, IA / 20,460 |
| 9. | 36.90 | Linn, IA / 214,927 |
| 10. | 37.50 | Scott, IA / 168,714 |
| 11. | 37.60 | Decatur, IA / 8,286 |
| 12. | 37.90 | Davis, IA / 8,765 |
| 13. | 38.20 | Muscatine, IA / 42,857 |
| 14. | 38.30 | Warren, IA / 47,058 |
| 15. | 38.50 | Crawford, IA / 17,259 |
| 15. | 38.50 | Lyon, IA / 11,680 |
| 17. | 38.60 | Bremer, IA / 24,481 |
| 17. | 38.60 | Marshall, IA / 40,922 |
| 19. | 38.70 | Pottawattamie, IA / 93,153 |
| 20. | 38.80 | Buchanan, IA / 20,947 |
| 20. | 38.80 | Marion, IA / 33,308 |
| 22. | 38.90 | Dubuque, IA / 95,166 |
| 23. | 39.60 | Mahaska, IA / 22,420 |
| 23. | 39.60 | Clarke, IA / 9,284 |
| 25. | 39.80 | Wapello, IA / 35,406 |
| 26. | 39.90 | Webster, IA / 37,399 |
| 27. | 40.40 | Madison, IA / 15,629 |
| 28. | 40.50 | Winneshiek, IA / 20,957 |
| 28. | 40.50 | Louisa, IA / 11,305 |
| 30. | 40.60 | Emmet, IA / 10,068 |
| 31. | 40.70 | Henry, IA / 20,197 |
| 32. | 40.90 | Benton, IA / 25,895 |
| 33. | 41.10 | Union, IA / 12,554 |
| 33. | 41.10 | Poweshiek, IA / 18,765 |
| 33. | 41.10 | Boone, IA / 26,326 |
| 36. | 41.70 | Mills, IA / 14,946 |
| 36. | 41.70 | Des Moines, IA / 40,265 |
| 38. | 41.80 | Washington, IA / 21,906 |
| 39. | 41.90 | Carroll, IA / 20,702 |
| 39. | 41.90 | Cedar, IA / 18,434 |
| 41. | 42.00 | Jasper, IA / 36,715 |
| 42. | 42.10 | Plymouth, IA / 24,899 |
| 42. | 42.10 | Clay, IA / 16,555 |
| 44. | 42.20 | Clinton, IA / 48,663 |
| 45. | 42.30 | Iowa, IA / 16,316 |
| 45. | 42.30 | Howard, IA / 9,529 |
| 45. | 42.30 | Delaware, IA / 17,578 |
| 45. | 42.30 | Hamilton, IA / 15,363 |
| 49. | 42.40 | Grundy, IA / 12,403 |
| 50. | 42.50 | Tama, IA / 17,568 |
| 51. | 42.60 | Lee, IA / 35,552 |
| 52. | 42.70 | Jefferson, IA / 17,102 |
| 53. | 42.80 | Monroe, IA / 8,019 |
| 54. | 42.90 | Palo Alto, IA / 9,263 |
| 55. | 43.00 | Franklin, IA / 10,572 |
| 55. | 43.00 | Fayette, IA / 20,693 |
| 57. | 43.10 | Jones, IA / 20,607 |
| 58. | 43.40 | Harrison, IA / 14,600 |
| 59. | 43.50 | Chickasaw, IA / 12,329 |
| 60. | 43.60 | Floyd, IA / 16,153 |
| 60. | 43.60 | Butler, IA / 14,966 |
| 62. | 43.80 | Osceola, IA / 6,279 |
| 62. | 43.80 | Page, IA / 15,737 |
| 64. | 43.90 | Cerro Gordo, IA / 43,707 |
| 65. | 44.00 | Obrien, IA / 14,173 |
| 66. | 44.10 | Van Buren, IA / 7,487 |
| 66. | 44.10 | Humboldt, IA / 9,731 |
| 66. | 44.10 | Winnebago, IA / 10,645 |
| 69. | 44.20 | Mitchell, IA / 10,744 |
| 69. | 44.20 | Keokuk, IA / 10,361 |
| 71. | 44.30 | Hardin, IA / 17,406 |
| 72. | 44.40 | Worth, IA / 7,567 |
| 72. | 44.40 | Wright, IA / 13,007 |
| 72. | 44.40 | Taylor, IA / 6,225 |
| 75. | 44.50 | Jackson, IA / 19,656 |
| 76. | 44.70 | Appanoose, IA / 12,754 |
| 76. | 44.70 | Cass, IA / 13,694 |
| 78. | 44.80 | Allamakee, IA / 14,152 |
| 78. | 44.80 | Lucas, IA / 8,785 |
| 78. | 44.80 | Hancock, IA / 11,175 |
| 81. | 44.90 | Ida, IA / 7,085 |
| 82. | 45.10 | Montgomery, IA / 10,549 |
| 82. | 45.10 | Greene, IA / 9,232 |
| 82. | 45.10 | Wayne, IA / 6,385 |
| 85. | 45.40 | Clayton, IA / 17,900 |
| 85. | 45.40 | Guthrie, IA / 10,794 |
| 87. | 46.00 | Adair, IA / 7,543 |
| 88. | 46.30 | Fremont, IA / 7,200 |
| 89. | 46.40 | Adams, IA / 3,937 |
| 89. | 46.40 | Ringgold, IA / 5,082 |
| 91. | 46.50 | Shelby, IA / 12,034 |
| 91. | 46.50 | Sac, IA / 10,162 |
| 93. | 46.60 | Kossuth, IA / 15,347 |
| 94. | 46.70 | Calhoun, IA / 9,980 |
| 95. | 47.00 | Monona, IA / 9,149 |
| 96. | 47.10 | Cherokee, IA / 11,982 |
| 97. | 47.40 | Pocahontas, IA / 7,191 |
| 98. | 47.70 | Audubon, IA / 5,935 |
| 99. | 48.70 | Dickinson, IA / 16,877 |
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.