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Wisconsin by county: Census 2020–2024

Every adult in Wisconsin, as the Census counts them, county by county and grouped by metro area. Each person is a real combination of traits from the Census's anonymised person records, weighted so every county matches its published tables, with party lean and 2024 turnout modelled and labelled so.

72 places, by metro area / county · Team plan

Every plan can look; creating a population from a state by county or by município needs Team.

What each person has

County by county

Adults in each county: darker has more. Point at a county for its numbers.

Adams County: 18,276 adults (0.4%)Ashland County: 12,749 adults (0.3%)Barron County: 36,929 adults (0.8%)Bayfield County: 13,868 adults (0.3%)Brown County: 208,632 adults (4.5%)Buffalo County: 10,725 adults (0.2%)Burnett County: 14,267 adults (0.3%)Calumet County: 41,182 adults (0.9%)Chippewa County: 52,508 adults (1.1%)Clark County: 24,434 adults (0.5%)Columbia County: 46,300 adults (1.0%)Crawford County: 12,965 adults (0.3%)Dane County: 459,882 adults (9.9%)Dodge County: 71,507 adults (1.5%)Door County: 25,643 adults (0.6%)Douglas County: 35,758 adults (0.8%)Dunn County: 36,751 adults (0.8%)Eau Claire County: 85,909 adults (1.8%)Florence County: 3,925 adults (0.1%)Fond du Lac County: 82,138 adults (1.8%)Forest County: 7,565 adults (0.2%)Grant County: 40,828 adults (0.9%)Green County: 29,063 adults (0.6%)Green Lake County: 15,088 adults (0.3%)Iowa County: 18,715 adults (0.4%)Iron County: 5,247 adults (0.1%)Jackson County: 16,563 adults (0.4%)Jefferson County: 69,032 adults (1.5%)Juneau County: 21,538 adults (0.5%)Kenosha County: 131,844 adults (2.8%)Kewaunee County: 16,356 adults (0.4%)La Crosse County: 97,158 adults (2.1%)Lafayette County: 12,661 adults (0.3%)Langlade County: 15,758 adults (0.3%)Lincoln County: 23,361 adults (0.5%)Manitowoc County: 64,914 adults (1.4%)Marathon County: 107,273 adults (2.3%)Marinette County: 34,114 adults (0.7%)Marquette County: 12,786 adults (0.3%)Menominee County: 2,963 adults (0.1%)Milwaukee County: 706,890 adults (15.2%)Monroe County: 34,484 adults (0.7%)Oconto County: 31,800 adults (0.7%)Oneida County: 31,791 adults (0.7%)Outagamie County: 148,569 adults (3.2%)Ozaukee County: 73,511 adults (1.6%)Pepin County: 5,771 adults (0.1%)Pierce County: 33,940 adults (0.7%)Polk County: 36,497 adults (0.8%)Portage County: 57,538 adults (1.2%)Price County: 11,628 adults (0.3%)Racine County: 152,631 adults (3.3%)Richland County: 13,553 adults (0.3%)Rock County: 127,547 adults (2.7%)Rusk County: 11,345 adults (0.2%)St. Croix County: 73,194 adults (1.6%)Sauk County: 51,257 adults (1.1%)Sawyer County: 15,269 adults (0.3%)Shawano County: 32,352 adults (0.7%)Sheboygan County: 92,595 adults (2.0%)Taylor County: 15,406 adults (0.3%)Trempealeau County: 22,618 adults (0.5%)Vernon County: 22,968 adults (0.5%)Vilas County: 19,820 adults (0.4%)Walworth County: 85,047 adults (1.8%)Washburn County: 13,819 adults (0.3%)Washington County: 108,954 adults (2.3%)Waukesha County: 325,464 adults (7.0%)Waupaca County: 41,200 adults (0.9%)Waushara County: 20,459 adults (0.4%)Winnebago County: 137,075 adults (2.9%)Wood County: 58,159 adults (1.3%)
2,963706,890adults, on a log scale

Error report

How close these people come to the published figures, and where they fall short.

4,650,326 adults · 248,901 Census records · 72 counties in 16 areas (metro areas and the rest of the state)

Built 2026-10-09 · records wisconsin-2024-v1

How close the people land on the Census

Each county's records are weighted until they match its American Community Survey tables. The figure is the worst county's largest gap on each table, in percentage points.

TableWorst county
Sex by age0.5
Race and ethnicity0.5
Education0.5
Household income0.5
Work0.1
Owned or rented home0.2
Citizenship0.0

A check left out of the fit: veterans

Veteran status was not used in weighting, so it shows how well the weighted people carry traits nobody fitted. Per county, the share of veterans among civilian adults lands a median 0.4 points from the Census's own figure; 95% of counties within 1.6, the worst 3.7.

What drawing a population adds

A population is a sample of these weighted people, so small counties vary from draw to draw. Largest gap per county between the people drawn and the county's records, counties with at least 30 people.

Trait10,000 people100,000 people
Median95% of counties withinMedian95% of counties within
Race and ethnicity0.62.50.10.4
Education2.57.60.31.7
Household income1.44.00.21.1

Party lean and 2024 turnout (modelled)

No Census record says how anyone votes, so these two traits are modelled. Each person starts from what Cooperative Election Study 2024 respondents like them (race, age, education and sex, in the Census Midwest) said and did, with turnout checked against the voter file. Each county is then calibrated so its people's turnout and Democratic-minus-Republican margin match its 2024 presidential result (MIT Election Lab). Those results count votes for president, so turnout runs a point or so under ballots cast.

CheckMarginTurnout
Each county against its 2024 result (calibrated)median 0.0, worst 0.0median 0.0, worst 0.0
Demographics alone, given only the statewide resultmedian 15.1, worst 63.7median 2.2, worst 13.6
The same, with priors that never saw anyone from Wisconsinmedian 15.1, worst 63.6median 2.1, worst 13.0

Leans against Wisconsin's own survey respondents

Nothing was fitted to these: the share of each lean among Wisconsin's adults, as modelled and as the CES's Wisconsin respondents gave it.

DemocraticRepublicanNeitherTurnout
Model42%43%15%
CES Wisconsin (n=1,319)39%42%19%
Priors that never saw anyone from Wisconsin, applied to its 1,306 citizen respondents37%47%16%60%
CES Wisconsin, citizens (n=1,306)39%43%18%59%

The county totals are right by construction: that is what calibration does. The honest test is the people alone, in the table above: given only the statewide result, how far each county's people land from its margin. Counties that vote very differently from people like them elsewhere in the region land furthest; the map shows where.

Within a county, calibration moves everyone's lean by the same factor, so lean by race inside one county is the weakest part. In the smallest counties the Census's five-year estimates carry wide margins, and where more presidential votes were cast than the estimate of citizens, turnout is held at 98%.

Use these traits to include or compare groups. They are not anyone's stated party, and results are never polls of real people.

Every county (72)
CountyAreaAdultsCensus gapVeterans (Census / people)Turnout 2024Margin: result / demographics alone
AdamsSmall towns and rural Wisconsin18,2760.510% / 11%72%−26 / −13
AshlandSmall towns and rural Wisconsin12,7490.18% / 8%71%+5 / −7
BarronSmall towns and rural Wisconsin36,9290.47% / 7%73%−29 / −9
BayfieldSmall towns and rural Wisconsin13,8680.111% / 9%81%+11 / −6
BrownGreen Bay208,6320.36% / 7%74%−8 / −2
BuffaloSmall towns and rural Wisconsin10,7250.58% / 9%76%−30 / −11
BurnettSmall towns and rural Wisconsin14,2670.210% / 10%76%−31 / −11
CalumetAppleton41,1820.26% / 6%82%−20 / −5
ChippewaEau Claire52,5080.58% / 8%74%−23 / −8
ClarkSmall towns and rural Wisconsin24,4340.36% / 6%65%−39 / −14
ColumbiaMadison46,3000.58% / 8%76%−5 / −7
CrawfordSmall towns and rural Wisconsin12,9650.48% / 9%71%−14 / −11
DaneMadison459,8820.54% / 5%85%+52 / +8
DodgeSmall towns and rural Wisconsin71,5070.27% / 7%71%−33 / −9
DoorSmall towns and rural Wisconsin25,6430.28% / 8%83%+2 / −5
DouglasDuluth35,7580.28% / 8%71%+5 / −5
DunnSmall towns and rural Wisconsin36,7510.45% / 6%71%−16 / −4
Eau ClaireEau Claire85,9090.36% / 6%75%+11 / −0
FlorenceSmall towns and rural Wisconsin3,9250.411% / 9%80%−50 / −12
Fond du LacFond du Lac82,1380.27% / 7%73%−29 / −8
ForestSmall towns and rural Wisconsin7,5650.38% / 8%68%−33 / −11
GrantSmall towns and rural Wisconsin40,8280.26% / 6%67%−18 / −5
GreenMadison29,0630.26% / 6%77%+0 / −7
Green LakeSmall towns and rural Wisconsin15,0880.47% / 7%74%−36 / −9
IowaMadison18,7150.36% / 6%79%+8 / −7
IronSmall towns and rural Wisconsin5,2470.49% / 10%78%−26 / −10
JacksonSmall towns and rural Wisconsin16,5630.49% / 8%64%−19 / −10
JeffersonSmall towns and rural Wisconsin69,0320.26% / 7%75%−16 / −6
JuneauSmall towns and rural Wisconsin21,5380.39% / 9%68%−32 / −11
KenoshaKenosha131,8440.36% / 6%72%−6 / +1
KewauneeGreen Bay16,3560.26% / 7%78%−34 / −10
La CrosseLa Crosse-Onalaska97,1580.27% / 7%75%+9 / +0
LafayetteSmall towns and rural Wisconsin12,6610.26% / 6%72%−20 / −10
LangladeSmall towns and rural Wisconsin15,7580.19% / 8%75%−35 / −13
LincolnSmall towns and rural Wisconsin23,3610.57% / 7%74%−25 / −11
ManitowocSmall towns and rural Wisconsin64,9140.18% / 7%73%−23 / −9
MarathonWausau107,2730.37% / 7%75%−19 / −6
MarinetteSmall towns and rural Wisconsin34,1140.210% / 8%72%−38 / −11
MarquetteSmall towns and rural Wisconsin12,7860.210% / 8%75%−30 / −14
MenomineeSmall towns and rural Wisconsin2,9630.17% / 9%53%+62 / −2
MilwaukeeMilwaukee-Waukesha706,8900.24% / 4%70%+38 / +14
MonroeSmall towns and rural Wisconsin34,4840.512% / 8%69%−26 / −8
OcontoGreen Bay31,8000.18% / 8%79%−43 / −11
OneidaSmall towns and rural Wisconsin31,7910.49% / 9%79%−18 / −8
OutagamieAppleton148,5690.46% / 6%77%−10 / −4
OzaukeeMilwaukee-Waukesha73,5110.36% / 6%88%−10 / +0
PepinSmall towns and rural Wisconsin5,7710.17% / 9%76%−29 / −10
PierceMinneapolis-St. Paul-Bloomington33,9400.36% / 7%76%−17 / −3
PolkSmall towns and rural Wisconsin36,4970.18% / 8%78%−31 / −9
PortageSmall towns and rural Wisconsin57,5380.57% / 7%76%+1 / −3
PriceSmall towns and rural Wisconsin11,6280.310% / 9%77%−31 / −14
RacineRacine-Mount Pleasant152,6310.26% / 6%73%−6 / +1
RichlandSmall towns and rural Wisconsin13,5530.27% / 7%70%−13 / −12
RockJanesville-Beloit127,5470.27% / 7%72%+7 / −4
RuskSmall towns and rural Wisconsin11,3450.19% / 9%73%−38 / −12
St. CroixMinneapolis-St. Paul-Bloomington73,1940.27% / 6%84%−19 / −2
SaukSmall towns and rural Wisconsin51,2570.27% / 7%75%−2 / −6
SawyerSmall towns and rural Wisconsin15,2690.29% / 9%74%−16 / −8
ShawanoSmall towns and rural Wisconsin32,3520.47% / 8%73%−36 / −11
SheboyganSheboygan92,5950.36% / 6%75%−16 / −6
TaylorSmall towns and rural Wisconsin15,4060.27% / 8%74%−48 / −13
TrempealeauSmall towns and rural Wisconsin22,6180.37% / 8%75%−21 / −9
VernonLa Crosse-Onalaska22,9680.27% / 9%73%−8 / −9
VilasSmall towns and rural Wisconsin19,8200.29% / 9%82%−23 / −8
WalworthSmall towns and rural Wisconsin85,0470.46% / 7%74%−22 / −4
WashburnSmall towns and rural Wisconsin13,8190.59% / 9%80%−28 / −11
WashingtonMilwaukee-Waukesha108,9540.26% / 6%85%−36 / −5
WaukeshaMilwaukee-Waukesha325,4640.46% / 5%87%−20 / +0
WaupacaSmall towns and rural Wisconsin41,2000.28% / 7%74%−33 / −11
WausharaSmall towns and rural Wisconsin20,4590.18% / 8%71%−35 / −12
WinnebagoOshkosh-Neenah137,0750.27% / 6%71%−5 / −3
WoodSmall towns and rural Wisconsin58,1590.28% / 8%74%−20 / −9

Sources

Records
ACS PUMS 2020–2024 5-year, Wisconsin, adults 18+
Tables
ACS 2020–2024 5-year tables B01001, B01001B/D/H/I, B15001, B19001, B23025, B25008, B26001; out of sample: B21001
Geography
2020 Census tract to 2020 PUMA relationship file; tract population B01003; metro areas, OMB delineation of July 2023
Citizenship
ACS 2020–2024 5-year table B05003 (raked)
Party lean
Modelled. Priors: Cooperative Election Study 2024 common content (Harvard Dataverse doi:10.7910/DVN/X11EP6, CC0), citizen respondents in the Census Midwest, validated 2024 vote and 7-point party ID with leaners as partisans. Calibration: 2024 county presidential returns, MIT Election Data and Science Lab (Harvard Dataverse doi:10.7910/DVN/VOQCHQ, CC0), presidential votes standing in for ballots cast.