Wisconsin Counties by Population (2026)
2026 Pop.
100K
200K
300K
400K
500K
600K
700K
800K
900K
Top 5 Most Populous Counties
924,109
594,425
418,654
277,355
199,397
| County | 2026 Pop. ↓ | Area (mi²) | Density (/mi²) | Change (2020) |
|---|---|---|---|---|
| Milwaukee County | 924,109 | 241 | 3,834 | -1.54% |
| Dane County | 594,425 | 1.2K | 497 | 5.65% |
| Waukesha County | 418,654 | 550 | 761 | 2.74% |
| Brown County | 277,355 | 530 | 523 | 3.12% |
| Racine County | 199,397 | 333 | 599 | 0.67% |
| Outagamie County | 197,003 | 638 | 309 | 3.17% |
| Winnebago County | 175,142 | 435 | 403 | 1.93% |
| Kenosha County | 168,448 | 272 | 619 | -0.44% |
| Rock County | 167,279 | 718 | 233 | 2.15% |
| Marathon County | 139,770 | 1.5K | 90 | 1.2% |
| Washington County | 139,732 | 431 | 324 | 2.14% |
| La Crosse County | 121,715 | 452 | 269 | 0.63% |
| Sheboygan County | 118,003 | 512 | 230 | -0.03% |
| Eau Claire County | 109,455 | 638 | 172 | 3.36% |
| Walworth County | 106,131 | 555 | 191 | 0.77% |
| Fond du Lac County | 104,617 | 720 | 145 | 0.44% |
| St. Croix County | 98,898 | 722 | 137 | 5.35% |
| Ozaukee County | 95,027 | 233 | 408 | 3.71% |
| Dodge County | 89,317 | 876 | 102 | -0.03% |
| Jefferson County | 86,470 | 556 | 156 | 0.29% |
| Manitowoc County | 81,537 | 589 | 138 | 0.17% |
| Wood County | 73,865 | 793 | 93 | -0.42% |
| Portage County | 72,128 | 801 | 90 | 2.42% |
| Chippewa County | 67,934 | 1K | 67 | 2.41% |
| Sauk County | 66,751 | 832 | 80 | 1.45% |
| Columbia County | 58,259 | 766 | 76 | -0.47% |
| Calumet County | 54,200 | 318 | 170 | 3.29% |
| Grant County | 52,488 | 1.1K | 46 | 0.96% |
| Waupaca County | 51,493 | 748 | 69 | -0.59% |
| Monroe County | 46,639 | 901 | 52 | 0.72% |
| Dunn County | 46,440 | 850 | 55 | 2.15% |
| Barron County | 46,257 | 863 | 54 | -0.99% |
| Polk County | 45,834 | 914 | 50 | 1.79% |
| Douglas County | 44,062 | 1.3K | 34 | -0.65% |
| Pierce County | 43,732 | 574 | 76 | 3.58% |
| Marinette County | 42,758 | 1.4K | 31 | 2.08% |
| Shawano County | 41,714 | 893 | 47 | 2.09% |
| Oconto County | 40,384 | 1K | 41 | 3.34% |
| Oneida County | 38,087 | 1.1K | 34 | 0.59% |
| Green County | 37,217 | 584 | 64 | 0.48% |
| Clark County | 35,129 | 1.2K | 29 | 1.41% |
| Vernon County | 31,521 | 792 | 40 | 2.69% |
| Trempealeau County | 31,414 | 733 | 43 | 1.91% |
| Door County | 30,651 | 482 | 64 | 1.74% |
| Lincoln County | 28,411 | 879 | 32 | -0.04% |
| Juneau County | 26,652 | 767 | 35 | -0.47% |
| Waushara County | 25,373 | 626 | 41 | 3.43% |
| Iowa County | 23,927 | 763 | 31 | 0.89% |
| Vilas County | 23,769 | 858 | 28 | 2.93% |
| Adams County | 21,939 | 646 | 34 | 6.05% |
| Jackson County | 20,965 | 988 | 21 | -0.62% |
| Kewaunee County | 20,747 | 342 | 61 | 0.95% |
| Taylor County | 20,139 | 975 | 21 | 0.99% |
| Langlade County | 19,566 | 871 | 22 | 0.52% |
| Green Lake County | 19,278 | 350 | 55 | 1.38% |
| Sawyer County | 18,901 | 1.3K | 15 | 4.3% |
| Lafayette County | 17,609 | 634 | 28 | 5.96% |
| Burnett County | 17,258 | 822 | 21 | 4.09% |
| Washburn County | 17,150 | 797 | 22 | 3.2% |
| Richland County | 16,943 | 586 | 29 | -1.96% |
| Bayfield County | 16,789 | 1.5K | 11 | 3.38% |
| Ashland County | 16,205 | 1K | 16 | 1.1% |
| Marquette County | 16,016 | 456 | 35 | 2.71% |
| Crawford County | 15,901 | 571 | 28 | -1.13% |
| Rusk County | 14,166 | 914 | 15 | -0.02% |
| Price County | 13,864 | 1.3K | 11 | -1.2% |
| Buffalo County | 13,238 | 676 | 20 | -0.71% |
| Forest County | 9,634 | 1K | 9.5 | 5.03% |
| Pepin County | 7,485 | 232 | 32 | 1.85% |
| Iron County | 6,058 | 758 | 8.0 | -1.4% |
| Florence County | 4,814 | 488 | 9.9 | 5.45% |
| Menominee County | 4,168 | 358 | 12 | -2.11% |
Sources
- US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
- American Community Survey (2009 - 2013)
- Census QuickFacts
- Historical Populations of States and Counties (1790 - 1990)