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Wisconsin statistical areas

The U.S. State of Wisconsin currently has 40 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 11 combined statistical areas, 15 metropolitan statistical areas, and 14 micropolitan statistical areas in Wisconsin.[1] As of 2025, the largest of these is the Milwaukee–Racine–Waukesha, WI CSA, comprising the area around Wisconsin's largest city, Milwaukee.

Statistical areas

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The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico.[2] These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau, planning organizations, and federal, state, and local government entities.

The OMB defines a core-based statistical area (CBSA) as the county or counties (or county-equivalents) surrounding at least one densely-settled core of at least 10,000 population,[2] "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core".[2] The OMB further divides a CBSA based on population into a metropolitan statistical area (MSA) for those with at least 50,000 people or a micropolitan statistical area (μSA) for those with 10,000 to 49,999 people.[2]

The OMB defines a combined statistical area (CSA) as two or more adjacent CBSAs where the employment interchange rate (percent commuting from A to B plus percent commuting from B to A) is at least 15%.[2] A primary statistical area (PSA) includes all CSAs and any CBSA that is not a constituent of a combined statistical area.

The 40 United States statistical areas and 72 counties of the State of Wisconsin[a]
Combined statistical area[1] 2025 population (est.)[3] Core-based statistical area[1] 2025 population (est.)[3] County 2025 population (est.)[3] Metropolitan division[1] 2025 population (est.)[3]
Milwaukee–Racine–Waukesha, WI CSA 2,055,558 Milwaukee–Waukesha, WI MSA 1,575,010 Milwaukee County, Wisconsin 924,216 none
Waukesha County, Wisconsin 417,210
Washington County, Wisconsin 139,238
Ozaukee County, Wisconsin 94,346
Racine–Mount Pleasant, WI MSA 198,919 Racine County, Wisconsin 198,919
Whitewater–Elkhorn, WI μSA 106,027 Walworth County, Wisconsin 106,127
Beaver Dam, WI μSA 89,097 Dodge County, Wisconsin 89,097
Watertown–Fort Atkinson, WI μSA 86,505 Jefferson County, Wisconsin 86,505
Madison–Janesville–Beloit, WI CSA 942,809 Madison, WI MSA 709,685 Dane County, Wisconsin 590,375
Columbia County, Wisconsin 58,132
Green County, Wisconsin 37,227
Iowa County, Wisconsin 23,951
Janesville–Beloit, WI MSA 166,472 Rock County, Wisconsin 166,472
Baraboo, WI μSA 66,652 Sauk County, Wisconsin 66,652
Appleton–Oshkosh–Neenah, WI CSA 424,094 Appleton, WI MSA 249,876 Outagamie County, Wisconsin 195,894
Calumet County, Wisconsin 53,982
Oshkosh–Neenah, WI MSA 174,218 Winnebago County, Wisconsin 174,218
Green Bay–Shawano, WI CSA 382,515 Green Bay, WI MSA 336,756 Brown County, Wisconsin 275,803
Oconto County, Wisconsin 40,195
Kewaunee County, Wisconsin 20,758
Shawano, WI μSA 45,759 Shawano County, Wisconsin 41,560
Menominee County, Wisconsin 4,199
Wausau–Stevens Point–Wisconsin Rapids, WI CSA 285,435 Wausau, WI MSA 139,432 Marathon County, Wisconsin 139,432
Wisconsin Rapids–Marshfield, WI μSA 74,060 Wood County, Wisconsin 74,060
Stevens Point–Plover, WI μSA 71,943 Portage County, Wisconsin 71,943
Eau Claire–Menomonie, WI CSA 222,870 Eau Claire, WI MSA 176,647 Eau Claire County, Wisconsin 109,033
Chippewa County, Wisconsin 67,614
Menomonie, WI μSA 46,223 Dunn County, Wisconsin 46,223
La Crosse–Onalaska–Sparta, WI-MN MSA 217,754
199,354 (WI)
La Crosse–Onlaska, WI-MN MSA 171,182
152,782 (WI)
La Crosse County, Wisconsin 121,339
Vernon County, Wisconsin 31,443
Houston County, Minnesota 18,400
Sparta, WI μSA 46,572 Monroe County, Wisconsin 46,572
Chicago–Naperville, IL-IN-WI CSA 9,965,292
168,448 (WI)
Chicago–Naperville–Elgin, IL-IN MSA 9,434,123 Cook County, Illinois 5,194,625 Chicago-Naperville-Schaumburg, IL MD 7,212,979
DuPage County, Illinois 934,298
Will County, Illinois 712,253
McHenry County, Illinois 317,751
Grundy County, Illinois 54,052
Kane County, Illinois 525,757 Elgin, IL MD 773,062
Kendall County, Illinois 145,470
DeKalb County, Illinois 101,835
Lake County, Indiana 504,612 Lake County-Porter County-Jasper County, IN MD 728,743
Porter County, Indiana 176,049
Jasper County, Indiana 33,894
Newton County, Indiana 14,188
Lake County, Illinois 719,339 Lake County, IL MD 719,339
Kenosha, WI MSA 168,448 Kenosha County, Wisconsin 168,448 none
Ottawa, IL μSA 145,902 LaSalle County, Illinois 107,773
Bureau County, Illinois 32,510
Putnam County, Illinois 5,619
Michigan City–La Porte, IN MSA 111,294 LaPorte County, Indiana 111,294
Kankakee, IL MSA 105,525 Kankakee County, Illinois 105,525
Minneapolis–St. Paul, MN-WI CSA 4,188,378
141,795 (WI)
Minneapolis–St. Paul–Bloomington, MN-WI MSA 3,790,295
141,795 (WI)
Hennepin County, Minnesota 1,284,784
Ramsey County, Minnesota 541,623
Dakota County, Minnesota 457,710
Anoka County, Minnesota 381,605
Washington County, Minnesota 286,895
Scott County, Minnesota 159,017
Wright County, Minnesota 157,559
Carver County, Minnesota 114,379
Sherburne County, Minnesota 104,194
St. Croix County, Wisconsin 98,276
Chisago County, Minnesota 59,142
Isanti County, Minnesota 44,386
Pierce County, Wisconsin 43,519
Le Sueur County, Minnesota 29,453
Mille Lacs County, Minnesota 27,753
St. Cloud, MN MSA 205,854 Stearns County, Minnesota 164,110
Benton County, Minnesota 41,744
Faribault–Northfield, MN μSA 69,939 Rice County, Minnesota 69,939
Red Wing, MN μSA 48,195 Goodhue County, Minnesota 48,195
Owatonna, MN μSA 37,464 Steele County, Minnesota 37,464
Hutchinson, MN μSA 36,631 McLeod County, Minnesota 36,631
none Sheboygan, WI MSA 118,047 Sheboygan County, Wisconsin 118,047
Fond du Lac, WI MSA 104,669 Fond du Lac County, Wisconsin 104,669
Manitowoc, WI μSA 81,710 Manitowoc County, Wisconsin 81,710
Platteville, WI μSA 52,446 Grant County, Wisconsin 52,446
Marinette–Iron Mountain, WI-MI CSA 96,090
47,322 (WI)
Marinette, WI-MI μSA 65,515
42,574 (WI)
Marinette County, Wisconsin 42,574
Menominee County, Michigan 22,941
Iron Mountain, MI-WI μSA 30,575
4,748 (WI)
Dickinson County, Michigan 25,827
Florence County, Wisconsin 4,748
none Rice Lake, WI μSA 46,484 Barron County, Wisconsin 46,484
Duluth–Grand Rapids, MN-WI CSA 326,623
43,990 (WI)
Duluth, MN-WI MSA 281,219
43,990 (WI)
St. Louis County, Minnesota 200,518
Douglas County, Wisconsin 43,990
Carlton County, Minnesota 36,711
Grand Rapids, MN μSA 45,404 Itasca County, Minnesota 45,404
none Waupaca County, Wisconsin 51,461
Polk County, Wisconsin 45,803
Oneida County, Wisconsin 38,131
Clark County, Wisconsin 35,052
Trempealeau County, Wisconsin 31,171
Door County, Wisconsin 30,616
Lincoln County, Wisconsin 28,403
Juneau County, Wisconsin 26,649
Waushara County, Wisconsin 25,223
Vilas County, Wisconsin 23,761
Adams County, Wisconsin 21,752
Jackson County, Wisconsin 20,999
Taylor County, Wisconsin 20,118
Langlade County, Wisconsin 19,534
Green Lake County, Wisconsin 19,305
Sawyer County, Wisconsin 18,846
Lafayette County, Wisconsin 17,478
Burnett County, Wisconsin 17,223
Washburn County, Wisconsin 17,087
Richland County, Wisconsin 17,036
Bayfield County, Wisconsin 16,787
Ashland County, Wisconsin 16,203
Marquette County, Wisconsin 15,927
Crawford County, Wisconsin 15,910
Rusk County, Wisconsin 14,146
Price County, Wisconsin 13,988
Buffalo County, Wisconsin 13,318
Forest County, Wisconsin 9,574
Pepin County, Wisconsin 7,513
Iron County, Wisconsin 6,127
State of Wisconsin 5,972,787
The 29 core-based statistical areas of the State of Wisconsin[b]
2025 rank Core-based statistical area[1] Population
2025 estimate[3] Change 2020 Census[4] Change 2010 Census[5]
1 Milwaukee–Waukesha, WI MSA 1,575,010+0.02%1,574,731+1.21%1,555,908
2 Madison, WI MSA 709,685+4.24%680,796+12.45%605,435
3 Green Bay, WI MSA 336,756+2.59%328,268+7.19%306,241
4 Appleton, WI MSA 249,876+2.77%243,147+7.75%225,666
5 Racine–Mount Pleasant, WI MSA 198,919+0.60%197,727+1.19%195,408
6 Eau Claire, WI MSA 176,647+2.70%172,007+6.74%161,151
7 Oshkosh–Neenah, WI MSA 174,218+1.45%171,730+2.84%166,994
8 Kenosha, WI MSA 168,448−0.42%169,151+1.64%166,426
9 Janesville-Beloit, WI MSA 166,472+1.70%163,687+2.09%160,331
10 La Crosse–Onalaska, WI-MN MSA (WI) 152,782+0.85%151,498+4.91%144,411
11 Minneapolis–St. Paul–Bloomington, MN-WI MSA (WI) 141,795+4.45%135,748+8.28%125,364
12 Wausau, WI MSA 139,432+1.03%138,013+2.95%134,063
13 Sheboygan, WI MSA 118,047+0.01%118,034+2.19%115,507
14 Whitewater–Elkhorn, WI μSA 106,027−0.42%106,478+4.16%102,228
15 Fond du Lac, WI MSA 104,669+0.49%104,154+2.48%101,633
16 Beaver Dam, WI μSA 89,097−0.33%89,396+0.72%88,759
17 Watertown–Fort Atkinson, WI μSA 86,505+1.89%84,900+1.45%83,686
18 Manitowoc, WI μSA 81,710+0.43%81,359−0.10%81,442
19 Wisconsin Rapids–Marshfield, WI μSA 74,060−0.20%74,207−0.73%74,749
20 Stevens Point–Plover, WI μSA 71,943+2.23%70,377+0.51%70,019
21 Baraboo, WI μSA 66,652+1.35%65,763+6.11%61,976
22 Platteville, WI μSA 52,446+0.98%51,938+1.43%51,208
23 Sparta, WI μSA 46,572+0.64%46,274+3.58%44,673
24 Rice Lake, WI μSA 46,484−0.49%46,711+1.83%45,870
25 Menomonie, WI μSA 46,223+1.72%45,440+3.61%43,857
26 Shawano, WI μSA 45,759+1.38%45,136−2.26%46,181
27 Duluth, MN-WI MSA (WI) 43,990−0.69%44,295+0.31%44,159
28 Marinette, WI-MI μSA (WI) 42,574+1.68%41,872+0.29%41,749
29 Iron Mountain, MI-WI μSA (WI) 4,748+4.17%4,558+3.05%4,423
Duluth, MN-WI MSA 281,219+0.17%280,733+0.34%279,771
Iron Mountain, MI-WI μSA 30,575+0.23%30,505−0.28%30,591
La Crosse–Onalaska, WI-MN MSA 171,182+0.49%170,341+4.22%163,438
Marinette, WI-MI μSA 65,515+0.22%65,374−0.61%65,778
Minneapolis–St. Paul–Bloomington, MN-WI MSA 3,790,295+2.71%3,690,261+10.70%3,333,633
The 11 combined statistical areas of the State of Wisconsin[c]
2025 rank Combined statistical area[1] Population
2025 estimate[3] Change 2020 Census[4] Change 2010 Census[5]
1 Milwaukee–Racine–Waukesha, WI CSA 2,055,558+0.11%2,053,232+1.34%2,025,989
2 Madison–Janesville–Beloit, WI CSA 942,809+3.58%910,246+9.97%827,742
3 Appleton–Oshkosh–Neenah, WI CSA 424,094+2.22%414,877+5.66%392,660
4 Green Bay–Shawano, WI CSA 382,515+2.44%373,404+5.95%352,422
5 Wausau–Stevens Point–Wisconsin Rapids, WI CSA 285,435+1.00%282,597+1.35%278,831
6 Eau Claire–Menomonie, WI CSA 222,870+2.49%217,447+6.07%205,008
7 La Crosse–Onalaska–Sparta, WI-MN CSA (WI) 199,354+0.80%197,772+4.59%189,084
8 Chicago–Naperville, IL-IN-WI CSA (WI) 168,448−0.42%169,151+1.64%166,426
9 Minneapolis–St. Paul, MN-WI CSA (WI) 141,795+4.45%135,748+8.28%125,364
10 Marinette–Iron Mountain, WI-MI CSA (WI) 47,322+1.92%46,430+0.56%46,172
11 Duluth–Grand Rapids, MN-WI CSA (WI) 43,990−0.69%44,295+0.31%44,159
Chicago–Naperville, IL-IN-WI CSA 9,965,292−0.22%9,986,960+1.48%9,840,929
Duluth–Grand Rapids, MN-WI CSA 326,623+0.27%325,747+0.28%324,829
La Crosse–Onalaska–Sparta, WI-MN CSA 217,754+0.53%216,615+4.09%208,111
Marinette–Iron Mountain, WI-MI CSA 96,090+0.22%95,879−0.51%96,369
Minneapolis–St. Paul, MN-WI CSA 4,188,378+2.69%4,078,788+10.05%3,706,278

See also

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Notes

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  1. An out-of-state area and its population are displayed in green. An area that extends into more than one state is displayed in purple. A purple population number over a black population number show the total population versus the in-state population. The state's abbreviation is also shown next to the in-state total.
  2. For CBSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CBSA as well as the CBSA's total population. Only the intrastate population is ranked.
  3. For CSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that CSA as well as the CSA's total population. Only the intrastate population is ranked.

References

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  1. 1 2 3 4 5 6 Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (July 21, 2023). "0MB BULLETIN NO. 23-01" (PDF). Office of Management and Budget. Retrieved October 23, 2023.{{cite web}}: CS1 maint: multiple names: authors list (link)
  2. 1 2 3 4 5 "2020 Standards for Delineating Core Based Statistical Areas". Office of Management and Budget. July 16, 2021. Retrieved December 13, 2021.
  3. 1 2 3 4 5 6 "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2025". United States Census Bureau, Population Division. July 2025. Retrieved July 10, 2026.
  4. 1 2 "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS". U.S. Census Bureau. 2020. Retrieved May 21, 2024.
  5. 1 2 "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019". U.S. Census Bureau. 2019. Retrieved May 21, 2024.
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44°37′27″N 89°59′39″W / 44.6243°N 89.9941°W / 44.6243; -89.9941 (State of Wisconsin)