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About this map

Share of residents under 18.

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024).

U.S.
22%
Iowa
22.9%
Rankings
Full list

Top and bottom zip codes in Iowa

Zip codes with 1,000+ residents

Zip codes with the most children

See all
  1. 152570Milton42.5%
  2. 250641Hazleton40%
  3. 352237Hopkinton39.6%
  4. 452590Seymour38.3%
  5. 550174Murray38.3%
  6. 650124Huxley36.8%
  7. 752561Fremont36.5%
  8. 852046Farley36%
  9. 952162Postville35.5%
  10. 1051240Inwood35.4%

Zip codes with the fewest children

See all
  1. 150013Ames0.5%
  2. 250012Ames0.7%
  3. 352242Iowa City0.8%
  4. 450309Des Moines6.5%
  5. 552223Delhi9.3%
  6. 652401Cedar Rapids9.8%
  7. 751101Sioux City10%
  8. 852565Keosauqua11.7%
  9. 952801Davenport11.8%
  10. 1052245Iowa City12.7%

Residents under 18 by county in Iowa

  1. 1Davis County29.9%
  2. 2Lyon County28.2%
  3. 3Sioux County27.2%
  4. 4Buena Vista County26.6%
  5. 5Dallas County26.6%
  6. 6Wright County26%
  7. 7Wayne County25.9%
  8. 8Howard County25.8%
  9. 9Woodbury County25.8%
  10. 10Clarke County25.6%
  11. 11Crawford County25.5%
  12. 12Buchanan County25.4%
  13. 13Marshall County25.4%
  14. 14Madison County25.2%
  15. 15Plymouth County25%
  16. 16Allamakee County24.5%
  17. 17Washington County24.5%
  18. 18Carroll County24.4%
  19. 19O'Brien County24.4%
  20. 20Polk County24.4%
  21. 21Warren County24.4%
  22. 22Ida County24.3%
  23. 23Franklin County24.1%
  24. 24Muscatine County23.9%
  25. 25Hamilton County23.8%
  26. 26Mitchell County23.8%
  27. 27Wapello County23.8%
  28. 28Humboldt County23.7%
  29. 29Mahaska County23.7%
  30. 30Tama County23.7%
  31. 31Van Buren County23.6%
  32. 32Grundy County23.5%
  33. 33Lucas County23.5%
  34. 34Clay County23.3%
  35. 35Delaware County23.3%
  36. 36Iowa County23.3%
  37. 37Pocahontas County23.3%
  38. 38Cass County23.2%
  39. 39Chickasaw County23.2%
  40. 40Harrison County23.1%
  41. 41Marion County23.1%
  42. 42Palo Alto County23.1%
  43. 43Scott County23.1%
  44. 44Monroe County23%
  45. 45Adair County22.9%
  46. 46Benton County22.9%
  47. 47Clinton County22.9%
  48. 48Pottawattamie County22.9%
  49. 49Shelby County22.9%
  50. 50Mills County22.8%
  51. 51Floyd County22.7%
  52. 52Osceola County22.7%
  53. 53Taylor County22.7%
  54. 54Monona County22.6%
  55. 55Montgomery County22.6%
  56. 56Dubuque County22.5%
  57. 57Linn County22.5%
  58. 58Union County22.5%
  59. 59Bremer County22.4%
  60. 60Butler County22.4%
  61. 61Keokuk County22.4%
  62. 62Ringgold County22.4%
  63. 63Adams County22.3%
  64. 64Cherokee County22.2%
  65. 65Decatur County22.2%
  66. 66Des Moines County22.2%
  67. 67Jackson County22.2%
  68. 68Jasper County22%
  69. 69Kossuth County22%
  70. 70Louisa County22%
  71. 71Black Hawk County21.9%
  72. 72Calhoun County21.7%
  73. 73Greene County21.7%
  74. 74Sac County21.7%
  75. 75Appanoose County21.6%
  76. 76Audubon County21.6%
  77. 77Clayton County21.6%
  78. 78Fayette County21.4%
  79. 79Fremont County21.4%
  80. 80Webster County21.4%
  81. 81Guthrie County21.2%
  82. 82Lee County21.2%
  83. 83Cedar County21.1%
  84. 84Winnebago County21.1%
  85. 85Boone County21%
  86. 86Hancock County21%
  87. 87Henry County20.9%
  88. 88Cerro Gordo County20.8%
  89. 89Worth County20.7%
  90. 90Jones County20.2%
  91. 91Poweshiek County19.4%
  92. 92Johnson County19.3%
  93. 93Page County19.2%
  94. 94Dickinson County19.1%
  95. 95Emmet County19.1%
  96. 96Hardin County19%
  97. 97Winneshiek County18.7%
  98. 98Jefferson County17.1%
  99. 99Story County16.2%

Questions about this map

Which zip code has the highest residents under 18 in Iowa?

Among zip codes with at least 1,000 residents, 52570 (Milton, IA) has the highest: 42.5%.

Which zip code has the lowest residents under 18 in Iowa?

50013 (Ames, IA) has the lowest: 0.5%.

What is the residents under 18 for the United States?

22%; in Iowa it is 22.9%.

Where does this data come from?

U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024). Share of residents under 18.

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