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About this map

Residents per square mile of land (water excluded). Under 50 is rural, a few hundred is small-town, 2,500+ is urban, and 10,000+ is big-city dense.

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

U.S.
95/sq mi
Wisconsin
109/sq mi
Rankings
Full list

Top and bottom zip codes in Wisconsin

Zip codes with 1,000+ residents

Most densely populated zip codes

See all
  1. 153703Madison20,356/sq mi
  2. 254307Green Bay13,429/sq mi
  3. 353204Milwaukee12,402/sq mi
  4. 453202Milwaukee12,233/sq mi
  5. 553715Madison12,074/sq mi
  6. 653215Milwaukee10,541/sq mi
  7. 753706Madison9,446/sq mi
  8. 853210Milwaukee9,359/sq mi
  9. 953726Madison8,942/sq mi
  10. 1053211Milwaukee8,634/sq mi

Most sparsely populated zip codes

See all
  1. 154896Winter4/sq mi
  2. 254511Argonne5/sq mi
  3. 354104Athelstane6/sq mi
  4. 454838Gordon6/sq mi
  5. 554546Mellen6/sq mi
  6. 654547Mercer7/sq mi
  7. 754856Mason8/sq mi
  8. 854514Butternut8/sq mi
  9. 954491White Lake8/sq mi
  10. 1054466Pittsville8/sq mi

Population density by county in Wisconsin

  1. 1Milwaukee County3,836/sq mi
  2. 2Waukesha County749/sq mi
  3. 3Kenosha County620/sq mi
  4. 4Racine County594/sq mi
  5. 5Brown County511/sq mi
  6. 6Dane County479/sq mi
  7. 7Ozaukee County399/sq mi
  8. 8Winnebago County395/sq mi
  9. 9Washington County320/sq mi
  10. 10Outagamie County302/sq mi
  11. 11La Crosse County267/sq mi
  12. 12Sheboygan County231/sq mi
  13. 13Rock County229/sq mi
  14. 14Walworth County190/sq mi
  15. 15Eau Claire County168/sq mi
  16. 16Calumet County166/sq mi
  17. 17Jefferson County155/sq mi
  18. 18Fond du Lac County145/sq mi
  19. 19Manitowoc County138/sq mi
  20. 20St. Croix County133/sq mi
  21. 21Dodge County101/sq mi
  22. 22Wood County93/sq mi
  23. 23Marathon County90/sq mi
  24. 24Portage County88/sq mi
  25. 25Sauk County79/sq mi
  26. 26Columbia County76/sq mi
  27. 27Pierce County74/sq mi
  28. 28Waupaca County69/sq mi
  29. 29Chippewa County66/sq mi
  30. 30Green County63/sq mi
  31. 31Door County63/sq mi
  32. 32Kewaunee County60/sq mi
  33. 33Green Lake County55/sq mi
  34. 34Barron County54/sq mi
  35. 35Dunn County54/sq mi
  36. 36Monroe County51/sq mi
  37. 37Polk County50/sq mi
  38. 38Shawano County46/sq mi
  39. 39Grant County45/sq mi
  40. 40Trempealeau County42/sq mi
  41. 41Oconto County40/sq mi
  42. 42Waushara County40/sq mi
  43. 43Vernon County39/sq mi
  44. 44Juneau County35/sq mi
  45. 45Marquette County35/sq mi
  46. 46Oneida County34/sq mi
  47. 47Douglas County34/sq mi
  48. 48Adams County33/sq mi
  49. 49Lincoln County32/sq mi
  50. 50Pepin County32/sq mi
  51. 51Iowa County31/sq mi
  52. 52Marinette County30/sq mi
  53. 53Richland County29/sq mi
  54. 54Clark County29/sq mi
  55. 55Crawford County28/sq mi
  56. 56Vilas County28/sq mi
  57. 57Lafayette County27/sq mi
  58. 58Langlade County22/sq mi
  59. 59Jackson County21/sq mi
  60. 60Washburn County21/sq mi
  61. 61Burnett County21/sq mi
  62. 62Taylor County21/sq mi
  63. 63Buffalo County20/sq mi
  64. 64Rusk County16/sq mi
  65. 65Ashland County15/sq mi
  66. 66Sawyer County15/sq mi
  67. 67Menominee County12/sq mi
  68. 68Bayfield County11/sq mi
  69. 69Price County11/sq mi
  70. 70Florence County10/sq mi
  71. 71Forest County9/sq mi
  72. 72Iron County8/sq mi

Questions about this map

Which zip code has the highest population density in Wisconsin?

Among zip codes with at least 1,000 residents, 53703 (Madison, WI) has the highest: 20,356/sq mi.

Which zip code has the lowest population density in Wisconsin?

54896 (Winter, WI) has the lowest: 4/sq mi.

What is the population density for the United States?

95/sq mi; in Wisconsin it is 109/sq mi.

Where does this data come from?

U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024). Residents per square mile of land (water excluded). Under 50 is rural, a few hundred is small-town, 2,500+ is urban, and 10,000+ is big-city dense.

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