Local Data Search
A total of 99 results found. Show Results on Map.
| Rank | Median Age ▲ | County / Population |
| 1. | 24.70 | Story, IA / 84,780 |
| 2. | 27.50 | Johnson, IA / 125,810 |
| 3. | 33.20 | Sioux, IA / 32,069 |
| 4. | 34.30 | Black Hawk, IA / 127,369 |
| 5. | 34.60 | Polk, IA / 415,949 |
| 6. | 34.70 | Dallas, IA / 57,115 |
| 7. | 35.20 | Woodbury, IA / 101,764 |
| 8. | 35.90 | Linn, IA / 204,955 |
| 9. | 36.90 | Scott, IA / 162,994 |
| 10. | 37.50 | Decatur, IA / 8,321 |
| 10. | 37.50 | Buena Vista, IA / 19,573 |
| 12. | 37.60 | Muscatine, IA / 42,448 |
| 13. | 37.80 | Buchanan, IA / 20,911 |
| 14. | 37.90 | Warren, IA / 44,192 |
| 15. | 38.10 | Dubuque, IA / 92,046 |
| 16. | 38.30 | Pottawattamie, IA / 89,627 |
| 17. | 38.60 | Louisa, IA / 11,657 |
| 17. | 38.60 | Webster, IA / 38,458 |
| 19. | 38.90 | Mahaska, IA / 22,094 |
| 19. | 38.90 | Madison, IA / 15,253 |
| 21. | 39.10 | Bremer, IA / 23,505 |
| 22. | 39.20 | Marion, IA / 32,650 |
| 23. | 39.30 | Henry, IA / 20,078 |
| 24. | 39.50 | Wapello, IA / 35,484 |
| 24. | 39.50 | Winneshiek, IA / 20,764 |
| 26. | 39.60 | Emmet, IA / 10,357 |
| 27. | 39.70 | Crawford, IA / 16,479 |
| 28. | 39.90 | Benton, IA / 26,628 |
| 29. | 40.10 | Clarke, IA / 9,068 |
| 29. | 40.10 | Marshall, IA / 39,093 |
| 31. | 40.20 | Lyon, IA / 11,274 |
| 32. | 40.30 | Boone, IA / 26,222 |
| 33. | 40.40 | Clinton, IA / 49,129 |
| 33. | 40.40 | Davis, IA / 8,549 |
| 35. | 40.70 | Plymouth, IA / 24,356 |
| 36. | 40.80 | Des Moines, IA / 40,700 |
| 36. | 40.80 | Mills, IA / 15,052 |
| 38. | 40.90 | Tama, IA / 17,659 |
| 38. | 40.90 | Washington, IA / 21,152 |
| 40. | 41.00 | Delaware, IA / 17,445 |
| 41. | 41.10 | Jasper, IA / 36,606 |
| 42. | 41.20 | Hamilton, IA / 15,555 |
| 42. | 41.20 | Poweshiek, IA / 18,564 |
| 44. | 41.40 | Harrison, IA / 15,410 |
| 45. | 41.60 | Iowa, IA / 15,840 |
| 46. | 41.90 | Osceola, IA / 6,486 |
| 46. | 41.90 | Union, IA / 12,076 |
| 48. | 42.00 | Franklin, IA / 10,594 |
| 49. | 42.10 | Lee, IA / 35,772 |
| 49. | 42.10 | Jones, IA / 20,365 |
| 49. | 42.10 | Palo Alto, IA / 9,405 |
| 52. | 42.20 | Lucas, IA / 9,410 |
| 53. | 42.30 | Cerro Gordo, IA / 43,927 |
| 53. | 42.30 | Cedar, IA / 17,987 |
| 55. | 42.50 | Clay, IA / 16,676 |
| 56. | 42.70 | Jackson, IA / 19,892 |
| 57. | 42.80 | Fayette, IA / 20,484 |
| 57. | 42.80 | Grundy, IA / 12,166 |
| 57. | 42.80 | Floyd, IA / 16,162 |
| 60. | 42.90 | Van Buren, IA / 7,662 |
| 61. | 43.00 | Howard, IA / 9,488 |
| 61. | 43.00 | Keokuk, IA / 10,712 |
| 63. | 43.10 | Allamakee, IA / 14,421 |
| 63. | 43.10 | Appanoose, IA / 12,975 |
| 65. | 43.20 | Page, IA / 15,749 |
| 65. | 43.20 | Hardin, IA / 17,486 |
| 65. | 43.20 | Mitchell, IA / 10,790 |
| 65. | 43.20 | Carroll, IA / 20,764 |
| 69. | 43.30 | Winnebago, IA / 10,835 |
| 70. | 43.40 | Monroe, IA / 7,612 |
| 71. | 43.50 | Montgomery, IA / 10,968 |
| 72. | 43.60 | Chickasaw, IA / 12,160 |
| 73. | 43.80 | Worth, IA / 7,620 |
| 73. | 43.80 | Hancock, IA / 11,339 |
| 75. | 44.10 | Wright, IA / 13,039 |
| 76. | 44.20 | Taylor, IA / 6,434 |
| 76. | 44.20 | Butler, IA / 14,581 |
| 78. | 44.40 | Obrien, IA / 14,062 |
| 78. | 44.40 | Guthrie, IA / 11,032 |
| 78. | 44.40 | Humboldt, IA / 9,645 |
| 81. | 44.50 | Clayton, IA / 17,667 |
| 82. | 44.60 | Ida, IA / 6,971 |
| 82. | 44.60 | Jefferson, IA / 15,496 |
| 84. | 44.70 | Cass, IA / 13,854 |
| 84. | 44.70 | Greene, IA / 9,489 |
| 86. | 44.90 | Fremont, IA / 7,488 |
| 87. | 45.10 | Shelby, IA / 12,218 |
| 88. | 45.20 | Wayne, IA / 6,329 |
| 89. | 45.30 | Adair, IA / 7,555 |
| 90. | 45.60 | Ringgold, IA / 5,062 |
| 91. | 45.70 | Adams, IA / 4,072 |
| 92. | 45.80 | Audubon, IA / 6,140 |
| 93. | 45.90 | Sac, IA / 10,311 |
| 94. | 46.00 | Calhoun, IA / 9,964 |
| 95. | 46.20 | Kossuth, IA / 15,495 |
| 96. | 46.30 | Cherokee, IA / 11,681 |
| 97. | 46.50 | Dickinson, IA / 16,616 |
| 98. | 46.60 | Monona, IA / 9,118 |
| 99. | 46.80 | Pocahontas, IA / 7,574 |
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.