Wisconsin county populations
72 supported county-equivalent records in Wisconsin; July 1, 2025 population, 2024–2025 growth and 2025 land-area density.
Population totals use July 1, 2025 observations from PEP Vintage 2025. Change is measured since July 1, 2024. County equivalents are included, including Connecticut planning regions. Missing density is displayed as unavailable, never as zero.
Population table and filters
Whole-dataset downloads| Place | Population · 2025 | Change · 2024–25 | Growth · 2024–25 | People / sq. mi. |
|---|---|---|---|---|
| Milwaukee CountyWisconsin · County equivalent · 55079 | 924,216 | -107 | -0.01% | 3,827.7 |
| Dane CountyWisconsin · County equivalent · 55025 | 590,375 | +4,050 | +0.69% | 493.4 |
| Waukesha CountyWisconsin · County equivalent · 55133 | 417,210 | +1,444 | +0.35% | 758.9 |
| Brown CountyWisconsin · County equivalent · 55009 | 275,803 | +1,552 | +0.57% | 520.3 |
| Racine CountyWisconsin · County equivalent · 55101 | 198,919 | +478 | +0.24% | 598.0 |
| Outagamie CountyWisconsin · County equivalent · 55087 | 195,894 | +1,109 | +0.57% | 307.3 |
| Winnebago CountyWisconsin · County equivalent · 55139 | 174,218 | +924 | +0.53% | 400.8 |
| Kenosha CountyWisconsin · County equivalent · 55059 | 168,448 | 0 | 0.00% | 619.7 |
| Rock CountyWisconsin · County equivalent · 55105 | 166,472 | +807 | +0.49% | 231.8 |
| Marathon CountyWisconsin · County equivalent · 55073 | 139,432 | +338 | +0.24% | 90.2 |
| Washington CountyWisconsin · County equivalent · 55131 | 139,238 | +494 | +0.36% | 323.3 |
| La Crosse CountyWisconsin · County equivalent · 55063 | 121,339 | +376 | +0.31% | 268.6 |
| Sheboygan CountyWisconsin · County equivalent · 55117 | 118,047 | -44 | -0.04% | 230.8 |
| Eau Claire CountyWisconsin · County equivalent · 55035 | 109,033 | +422 | +0.39% | 170.9 |
| Walworth CountyWisconsin · County equivalent · 55127 | 106,127 | +4 | +0.00% | 191.1 |
| Fond du Lac CountyWisconsin · County equivalent · 55039 | 104,669 | -52 | -0.05% | 145.5 |
| St. Croix CountyWisconsin · County equivalent · 55109 | 98,276 | +622 | +0.64% | 136.1 |
| Ozaukee CountyWisconsin · County equivalent · 55089 | 94,346 | +681 | +0.73% | 404.9 |
| Dodge CountyWisconsin · County equivalent · 55027 | 89,097 | +220 | +0.25% | 101.7 |
| Jefferson CountyWisconsin · County equivalent · 55055 | 86,505 | -35 | -0.04% | 155.4 |
| Manitowoc CountyWisconsin · County equivalent · 55071 | 81,710 | -173 | -0.21% | 138.7 |
| Wood CountyWisconsin · County equivalent · 55141 | 74,060 | -195 | -0.26% | 93.4 |
| Portage CountyWisconsin · County equivalent · 55097 | 71,943 | +185 | +0.26% | 89.8 |
| Chippewa CountyWisconsin · County equivalent · 55017 | 67,614 | +320 | +0.48% | 67.0 |
| Sauk CountyWisconsin · County equivalent · 55111 | 66,652 | +99 | +0.15% | 80.2 |
| Columbia CountyWisconsin · County equivalent · 55021 | 58,132 | +127 | +0.22% | 75.9 |
| Calumet CountyWisconsin · County equivalent · 55015 | 53,982 | +218 | +0.41% | 169.6 |
| Grant CountyWisconsin · County equivalent · 55043 | 52,446 | +42 | +0.08% | 45.7 |
| Waupaca CountyWisconsin · County equivalent · 55135 | 51,461 | +32 | +0.06% | 68.8 |
| Monroe CountyWisconsin · County equivalent · 55081 | 46,572 | +67 | +0.14% | 51.7 |
| Barron CountyWisconsin · County equivalent · 55005 | 46,484 | -227 | -0.49% | 53.9 |
| Dunn CountyWisconsin · County equivalent · 55033 | 46,223 | +217 | +0.47% | 54.4 |
| Polk CountyWisconsin · County equivalent · 55095 | 45,803 | +31 | +0.07% | 50.1 |
| Douglas CountyWisconsin · County equivalent · 55031 | 43,990 | +72 | +0.16% | 33.7 |
| Pierce CountyWisconsin · County equivalent · 55093 | 43,519 | +213 | +0.49% | 75.8 |
| Marinette CountyWisconsin · County equivalent · 55075 | 42,574 | +184 | +0.43% | 30.4 |
| Shawano CountyWisconsin · County equivalent · 55115 | 41,560 | +154 | +0.37% | 46.5 |
| Oconto CountyWisconsin · County equivalent · 55083 | 40,195 | +189 | +0.47% | 40.3 |
| Oneida CountyWisconsin · County equivalent · 55085 | 38,131 | -44 | -0.12% | 34.2 |
| Green CountyWisconsin · County equivalent · 55045 | 37,227 | -10 | -0.03% | 63.7 |
| Clark CountyWisconsin · County equivalent · 55019 | 35,052 | +77 | +0.22% | 29.0 |
| Vernon CountyWisconsin · County equivalent · 55123 | 31,443 | +78 | +0.25% | 39.7 |
| Trempealeau CountyWisconsin · County equivalent · 55121 | 31,171 | +243 | +0.79% | 42.5 |
| Door CountyWisconsin · County equivalent · 55029 | 30,616 | +35 | +0.11% | 63.5 |
| Lincoln CountyWisconsin · County equivalent · 55069 | 28,403 | +8 | +0.03% | 32.3 |
| Juneau CountyWisconsin · County equivalent · 55057 | 26,649 | +3 | +0.01% | 34.7 |
| Waushara CountyWisconsin · County equivalent · 55137 | 25,223 | +150 | +0.60% | 40.3 |
| Iowa CountyWisconsin · County equivalent · 55049 | 23,951 | -24 | -0.10% | 31.4 |
| Vilas CountyWisconsin · County equivalent · 55125 | 23,761 | +8 | +0.03% | 27.7 |
| Adams CountyWisconsin · County equivalent · 55001 | 21,752 | +187 | +0.87% | 33.7 |
Use these comparisons consistently
A larger population does not necessarily mean faster growth. Absolute change measures the number of residents gained or lost; percentage change divides that difference by the starting population. The percentage column here covers one July-to-July interval, rather than a decade or a partial calendar year. Percent growth is suppressed where the starting population is zero.
Density divides the unrounded July 1, 2025 population by matching 2025 Gazetteer land area. It is measured in people per square mile and excludes water area. These geographic averages depend on the size and definition of each unit, so a county’s density is not directly comparable to a built-up city neighborhood.
County-equivalent names and units vary by state. Connecticut planning regions are represented in the current series; linking older county series requires a documented relationship. Incorporated places may cross county boundaries and do not form an exhaustive county breakdown.
Exports contain the current page’s visible rows after filtering, with reference date and release metadata. Use whole-dataset downloads for every row or select a compatible comparison to inspect a longer interval. The initial pep-2025-r1 snapshot remains reproducible when future releases are added.