Waukesha County, Wisconsin: Realigning Affluent Suburb county. In 2024, voted R+20%. Republican peak: R+49 in 1920.
Key facts
- 2024 presidential margin
- R+20MIT Election Lab
- Political typology
- Realigning Affluent SuburbAkashic typology
- Population
- 411,7622024 5-year
- Median household income
- $106,0762024 5-year
- White (non-Hispanic)
- 86.7%2024 5-year
- Black
- 1.6%2024 5-year
- Hispanic / Latino
- 5.7%2024 5-year
- Peak Democratic margin
- D+24 in 1936MIT Election Lab
- Peak Republican margin
- R+49 in 1920MIT Election Lab
- Most similar
- Rockwall County, TX · similarity 0.99
2024 results by precinct
2024 precinct map of Waukesha CountyPrecinct-level 2024 presidential results for Waukesha County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | +0.5% |
| 1896 | −25.0% |
| 1900 | −25.1% |
| 1904 | −30.5% |
| 1908 | −18.2% |
| 1912 | +12.0% |
| 1916 | +5.1% |
| 1920 | −48.8% |
| 1924 | −32.7% |
| 1928 | −21.5% |
| 1932 | +21.9% |
| 1936 | +24.1% |
| 1940 | −12.9% |
| 1944 | −15.8% |
| 1948 | −10.6% |
| 1952 | −31.4% |
| 1956 | −38.6% |
| 1960 | −15.2% |
| 1964 | +5.7% |
| 1968 | −18.0% |
| 1972 | −25.4% |
| 1976 | −19.0% |
| 1980 | −24.8% |
| 1984 | −32.1% |
| 1988 | −22.1% |
| 1992 | −23.0% |
| 1996 | −20.8% |
| 2000 | −33.8% |
| 2004 | −35.3% |
| 2008 | −25.7% |
| 2012 | −34.5% |
| 2016 | −26.7% |
| 2020 | −20.8% |
| 2024 | −19.7% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 108,478 | 162,768 | 275,787 | ||
| R | 103,906 | 159,649 | 267,996 | ||
| R | 79,224 | 142,543 | 237,593 | ||
| R | 78,779 | 162,798 | 243,856 | ||
| R | 85,339 | 145,152 | 232,897 | ||
| R | 73,626 | 154,926 | 230,363 | ||
| R | 64,319 | 133,105 | 203,734 | ||
| R | 57,354 | 91,729 | 165,472 | ||
| R | 50,270 | 91,461 | 179,182 | ||
| R | 57,598 | 90,467 | 148,893 | ||
| R | 47,313 | 92,426 | 140,660 | ||
| R | 46,612 | 81,059 | 139,148 | ||
| R | 47,487 | 70,418 | 120,953 | ||
| R | 34,573 | 59,399 | 97,622 | ||
| R | 31,947 | 47,557 | 86,504 | ||
| D | 39,796 | 35,502 | 75,429 | ||
| R | 28,963 | 39,380 | 68,419 | ||
| R | 15,496 | 35,212 | 51,084 | ||
| R | 15,756 | 30,238 | 46,111 | ||
| R | 13,952 | 17,324 | 31,950 | ||
| R | 13,038 | 17,995 | 31,326 | ||
| R | 12,859 | 16,726 | 29,943 | ||
| D | 14,982 | 8,921 | 25,194 | ||
| D | 13,487 | 8,538 | 22,609 | ||
| R | 7,846 | 12,218 | 20,311 | ||
| R | 1,965 | 7,026 | 15,459 | ||
| R | 2,759 | 8,665 | 12,097 | ||
| D | 4,192 | 3,768 | 8,335 | ||
| D | 3,594 | 2,714 | 7,363 | ||
| R | 3,206 | 4,758 | 8,510 | ||
| R | 2,693 | 5,247 | 8,378 | ||
| R | 3,016 | 5,127 | 8,418 | ||
| R | 3,192 | 5,411 | 8,880 | ||
| D | 3,635 | 3,600 | 7,572 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
41.7%
Irish
12.3%
Polish
11.6%
English
7.1%
Italian
5.6%
American
4.3%
French
2.7%
African American
1.3%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 43.5 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$106,076
Waukesha County ranks in the top 5% of US counties.
Waukesha County$106,076
Wisconsin$77,485
United States$80,734
Waukesha County ranks in the top 5% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
5.2%
Child poverty is below the national average.
Children under 184.9%
Working age (18–64)5.0%
Seniors (65+)8.3%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
92.3%
speak English only
Spanish2.8%
Other Indo-European2.7%
Asian & Pacific Islander1.9%
Other languages0.3%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 39.7% of residents not counted as adherents by any reporting body.
Waukesha County has posted double-digit Republican presidential margins for decades, making it one of the most reliably right-leaning urban-fringe counties in the Midwest and a critical counterweight to Milwaukee County's Democratic tallies.
Once reliably Republican — a margin of forty-nine points in 1920 at its widest — Waukesha County has trended Democratic. Between 2020 and 2024 the county moved one point toward the Democratic candidate; the 2024 margin was twenty points.
A median household income of $106,076 — among the higher at this geographic scale — and a population of 411,762 describe the county. The county's voting pattern over the last decade is most similar to that of Rockwall County and Goochland County.
Most similar counties
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Waukesha County, Wisconsin. Akashic. https://akashic.app/county/55133/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did Waukesha County, Wisconsin vote in 2024?
In 2024, Waukesha County, Wisconsin voted Republican by 19.7 points (R+20), carried by the Republican candidate. Out of 275,787 votes cast, 108,478 went Democratic and 162,768 went Republican.
What is Waukesha County, Wisconsin's political typology?
Akashic places Waukesha County, Wisconsin in the "Realigning Affluent Suburb" typology — College-educated, affluent suburbs — the one bloc moving toward the Democratic Party. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 6 times, Republican 28 times, and other 0 times.
When did Waukesha County, Wisconsin last vote Democratic?
The most recent presidential election in which Waukesha County, Wisconsin voted Democratic was 1964.
How many people live in Waukesha County, Wisconsin?
Waukesha County, Wisconsin has a population of 411,762 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Waukesha County, Wisconsin?
Median household income in Waukesha County, Wisconsin is $106,076 — above the national median of $80,734. The Wisconsin state median is $77,485.
What is the political history of Waukesha County, Wisconsin?
Akashic tracks 38 presidential elections in Waukesha County, Wisconsin from 1876 to 2024. Of those, 6 went Democratic and 28 went Republican. The county's typology — "Realigning Affluent Suburb" — captures where that record, its demographics, and its recent swing place it among American communities.