County research and study

Wisconsin county reference

72 counties and county equivalents in Wisconsin. Search names or FIPS codes, compare Census geography and keep the original sources with your work.

• Adams County

  Wisconsin · FIPS 55001

  21,752 residents · 2025 estimate

• Ashland County

  Wisconsin · FIPS 55003

  16,203 residents · 2025 estimate

• Barron County

  Wisconsin · FIPS 55005

  46,484 residents · 2025 estimate

• Bayfield County

  Wisconsin · FIPS 55007

  16,787 residents · 2025 estimate

• Brown County

  Wisconsin · FIPS 55009

  275,803 residents · 2025 estimate

• Buffalo County

  Wisconsin · FIPS 55011

  13,318 residents · 2025 estimate

• Burnett County

  Wisconsin · FIPS 55013

  17,223 residents · 2025 estimate

• Calumet County

  Wisconsin · FIPS 55015

  53,982 residents · 2025 estimate

• Chippewa County

  Wisconsin · FIPS 55017

  67,614 residents · 2025 estimate

• Clark County

  Wisconsin · FIPS 55019

  35,052 residents · 2025 estimate

• Columbia County

  Wisconsin · FIPS 55021

  58,132 residents · 2025 estimate

• Crawford County

  Wisconsin · FIPS 55023

  15,910 residents · 2025 estimate

• Dane County

  Wisconsin · FIPS 55025

  590,375 residents · 2025 estimate

• Dodge County

  Wisconsin · FIPS 55027

  89,097 residents · 2025 estimate

• Door County

  Wisconsin · FIPS 55029

  30,616 residents · 2025 estimate

• Douglas County

  Wisconsin · FIPS 55031

  43,990 residents · 2025 estimate

• Dunn County

  Wisconsin · FIPS 55033

  46,223 residents · 2025 estimate

• Eau Claire County

  Wisconsin · FIPS 55035

  109,033 residents · 2025 estimate

• Florence County

  Wisconsin · FIPS 55037

  4,748 residents · 2025 estimate

• Fond du Lac County

  Wisconsin · FIPS 55039

  104,669 residents · 2025 estimate

• Forest County

  Wisconsin · FIPS 55041

  9,574 residents · 2025 estimate

• Grant County

  Wisconsin · FIPS 55043

  52,446 residents · 2025 estimate

• Green County

  Wisconsin · FIPS 55045

  37,227 residents · 2025 estimate

• Green Lake County

  Wisconsin · FIPS 55047

  19,305 residents · 2025 estimate

• Iowa County

  Wisconsin · FIPS 55049

  23,951 residents · 2025 estimate

• Iron County

  Wisconsin · FIPS 55051

  6,127 residents · 2025 estimate

• Jackson County

  Wisconsin · FIPS 55053

  20,999 residents · 2025 estimate

• Jefferson County

  Wisconsin · FIPS 55055

  86,505 residents · 2025 estimate

• Juneau County

  Wisconsin · FIPS 55057

  26,649 residents · 2025 estimate

• Kenosha County

  Wisconsin · FIPS 55059

  168,448 residents · 2025 estimate

• Kewaunee County

  Wisconsin · FIPS 55061

  20,758 residents · 2025 estimate

• La Crosse County

  Wisconsin · FIPS 55063

  121,339 residents · 2025 estimate

• Lafayette County

  Wisconsin · FIPS 55065

  17,478 residents · 2025 estimate

• Langlade County

  Wisconsin · FIPS 55067

  19,534 residents · 2025 estimate

• Lincoln County

  Wisconsin · FIPS 55069

  28,403 residents · 2025 estimate

• Manitowoc County

  Wisconsin · FIPS 55071

  81,710 residents · 2025 estimate

• Marathon County

  Wisconsin · FIPS 55073

  139,432 residents · 2025 estimate

• Marinette County

  Wisconsin · FIPS 55075

  42,574 residents · 2025 estimate

• Marquette County

  Wisconsin · FIPS 55077

  15,927 residents · 2025 estimate

• Menominee County

  Wisconsin · FIPS 55078

  4,199 residents · 2025 estimate

• Milwaukee County

  Wisconsin · FIPS 55079

  924,216 residents · 2025 estimate

• Monroe County

  Wisconsin · FIPS 55081

  46,572 residents · 2025 estimate

• Oconto County

  Wisconsin · FIPS 55083

  40,195 residents · 2025 estimate

• Oneida County

  Wisconsin · FIPS 55085

  38,131 residents · 2025 estimate

• Outagamie County

  Wisconsin · FIPS 55087

  195,894 residents · 2025 estimate

• Ozaukee County

  Wisconsin · FIPS 55089

  94,346 residents · 2025 estimate

• Pepin County

  Wisconsin · FIPS 55091

  7,513 residents · 2025 estimate

• Pierce County

  Wisconsin · FIPS 55093

  43,519 residents · 2025 estimate

• Polk County

  Wisconsin · FIPS 55095

  45,803 residents · 2025 estimate

• Portage County

  Wisconsin · FIPS 55097

  71,943 residents · 2025 estimate

• Price County

  Wisconsin · FIPS 55099

  13,988 residents · 2025 estimate

• Racine County

  Wisconsin · FIPS 55101

  198,919 residents · 2025 estimate

• Richland County

  Wisconsin · FIPS 55103

  17,036 residents · 2025 estimate

• Rock County

  Wisconsin · FIPS 55105

  166,472 residents · 2025 estimate

• Rusk County

  Wisconsin · FIPS 55107

  14,146 residents · 2025 estimate

• Sauk County

  Wisconsin · FIPS 55111

  66,652 residents · 2025 estimate

• Sawyer County

  Wisconsin · FIPS 55113

  18,846 residents · 2025 estimate

• Shawano County

  Wisconsin · FIPS 55115

  41,560 residents · 2025 estimate

• Sheboygan County

  Wisconsin · FIPS 55117

  118,047 residents · 2025 estimate

• St. Croix County

  Wisconsin · FIPS 55109

  98,276 residents · 2025 estimate

• Taylor County

  Wisconsin · FIPS 55119

  20,118 residents · 2025 estimate

• Trempealeau County

  Wisconsin · FIPS 55121

  31,171 residents · 2025 estimate

• Vernon County

  Wisconsin · FIPS 55123

  31,443 residents · 2025 estimate

• Vilas County

  Wisconsin · FIPS 55125

  23,761 residents · 2025 estimate

• Walworth County

  Wisconsin · FIPS 55127

  106,127 residents · 2025 estimate

• Washburn County

  Wisconsin · FIPS 55129

  17,087 residents · 2025 estimate

• Washington County

  Wisconsin · FIPS 55131

  139,238 residents · 2025 estimate

• Waukesha County

  Wisconsin · FIPS 55133

  417,210 residents · 2025 estimate

• Waupaca County

  Wisconsin · FIPS 55135

  51,461 residents · 2025 estimate

• Waushara County

  Wisconsin · FIPS 55137

  25,223 residents · 2025 estimate

• Winnebago County

  Wisconsin · FIPS 55139

  174,218 residents · 2025 estimate

• Wood County

  Wisconsin · FIPS 55141

  74,060 residents · 2025 estimate

Use the county data

Use a county profile as a source-reading exercise or the geographic context for your own research. Keep the county FIPS identifier with your notes so that similarly named places in different states are not mixed.

The figures describe the county; they are not an evaluation of schools or an estimate of educational outcomes.

Geography: 2025 U.S. Census Gazetteer. Population: Vintage 2025 estimates, July 1, 2025. County equivalents include parishes, boroughs, independent cities and planning regions. Puerto Rico population is not supplied by this population file.