Washington County, Wisconsin: Stable Rural Right county. In 2024, voted R+36%. Republican peak: R+60 in 1920.
Key facts
- 2024 presidential margin
- R+36MIT Election Lab
- Political typology
- Stable Rural RightAkashic typology
- Population
- 137,8792024 5-year
- Median household income
- $96,3592024 5-year
- White (non-Hispanic)
- 91.4%2024 5-year
- Black
- 1.3%2024 5-year
- Hispanic / Latino
- 3.8%2024 5-year
- Peak Democratic margin
- D+58 in 1932MIT Election Lab
- Peak Republican margin
- R+60 in 1920MIT Election Lab
- Most similar
- Klamath County, OR · similarity 1.00
2024 results by precinct
2024 precinct map of Washington CountyPrecinct-level 2024 presidential results for Washington 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 | +21.2% |
| 1896 | −8.7% |
| 1900 | −1.7% |
| 1904 | −6.5% |
| 1908 | +0.7% |
| 1912 | +13.3% |
| 1916 | −2.8% |
| 1920 | −59.6% |
| 1924 | −12.4% |
| 1928 | +16.4% |
| 1932 | +57.9% |
| 1936 | +29.3% |
| 1940 | −28.5% |
| 1944 | −39.6% |
| 1948 | −20.6% |
| 1952 | −47.9% |
| 1956 | −46.3% |
| 1960 | −14.7% |
| 1964 | +11.4% |
| 1968 | −19.2% |
| 1972 | −18.2% |
| 1976 | −12.8% |
| 1980 | −26.0% |
| 1984 | −31.9% |
| 1988 | −20.8% |
| 1992 | −18.8% |
| 1996 | −17.8% |
| 2000 | −37.5% |
| 2004 | −40.6% |
| 2008 | −29.6% |
| 2012 | −40.1% |
| 2016 | −40.2% |
| 2020 | −38.1% |
| 2024 | −36.2% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 28,504 | 61,604 | 91,407 | ||
| R | 26,650 | 60,237 | 88,070 | ||
| R | 20,852 | 51,740 | 76,757 | ||
| R | 23,166 | 54,765 | 78,742 | ||
| R | 25,719 | 47,729 | 74,411 | ||
| R | 21,234 | 50,641 | 72,467 | ||
| R | 18,115 | 41,162 | 61,412 | ||
| R | 17,154 | 25,829 | 48,767 | ||
| R | 13,339 | 22,739 | 50,073 | ||
| R | 15,907 | 24,328 | 40,539 | ||
| R | 12,966 | 25,279 | 38,573 | ||
| R | 12,944 | 23,213 | 39,471 | ||
| R | 14,422 | 18,798 | 34,070 | ||
| R | 10,434 | 15,338 | 27,001 | ||
| R | 8,104 | 12,439 | 22,631 | ||
| D | 11,563 | 9,191 | 20,791 | ||
| R | 8,523 | 11,452 | 19,991 | ||
| R | 4,447 | 12,167 | 16,683 | ||
| R | 4,440 | 12,626 | 17,100 | ||
| R | 4,495 | 6,876 | 11,565 | ||
| R | 3,840 | 8,921 | 12,847 | ||
| R | 4,683 | 8,501 | 13,380 | ||
| D | 7,129 | 3,589 | 12,092 | ||
| D | 8,570 | 2,209 | 10,985 | ||
| D | 5,827 | 4,163 | 10,122 | ||
| O | 980 | 1,987 | 8,131 | ||
| R | 1,328 | 5,949 | 7,748 | ||
| R | 2,732 | 2,892 | 5,749 | ||
| D | 2,425 | 1,799 | 4,702 | ||
| D | 2,625 | 2,588 | 5,332 | ||
| R | 2,243 | 2,565 | 4,933 | ||
| R | 2,524 | 2,614 | 5,203 | ||
| R | 2,404 | 2,877 | 5,409 | ||
| D | 2,624 | 1,700 | 4,354 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
50.9%
Irish
11.1%
Polish
9.8%
English
6.6%
Italian
4.0%
American
3.8%
French
2.3%
African American
1.0%
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: 43.8 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
$96,359
Washington County ranks in the top 5% of US counties.
Washington County$96,359
Wisconsin$77,485
United States$80,734
Washington 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
5.8%
Child poverty is below the national average.
Children under 186.1%
Working age (18–64)5.2%
Seniors (65+)10.0%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
95.8%
speak English only
Other Indo-European1.9%
Spanish1.5%
Asian & Pacific Islander0.8%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 44.4% of residents not counted as adherents by any reporting body.
Washington County, just northwest of Milwaukee, delivers some of the widest GOP margins in the state — its R+36 presidential spread in 2024 reflects a densely settled, majority-white exurban electorate that has trended consistently rightward over the past two decades.
The Republican margin here reached sixty points in 1920. Between 2020 and 2024 the county moved two points toward the Democratic candidate; the 2024 margin was thirty-six points.
A population of 137,879, a 91% non-Hispanic-white share, and a median household income of $96,359 describe the county. The county's voting pattern over the last decade is most similar to that of Klamath County and Polk 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.
Washington County, Wisconsin. Akashic. https://akashic.app/county/55131/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More stable rural right counties
Frequently asked questions
How did Washington County, Wisconsin vote in 2024?
In 2024, Washington County, Wisconsin voted Republican by 36.2 points (R+36), carried by the Republican candidate. Out of 91,407 votes cast, 28,504 went Democratic and 61,604 went Republican.
What is Washington County, Wisconsin's political typology?
Akashic places Washington County, Wisconsin in the "Stable Rural Right" typology — Mountain, Plains, and rural Republican counties already near their ceiling, with little further room to swing. 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 7 times, Republican 26 times, and other 1 times.
When did Washington County, Wisconsin last vote Democratic?
The most recent presidential election in which Washington County, Wisconsin voted Democratic was 1964.
How many people live in Washington County, Wisconsin?
Washington County, Wisconsin has a population of 137,879 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Washington County, Wisconsin?
Median household income in Washington County, Wisconsin is $96,359 — above the national median of $80,734. The Wisconsin state median is $77,485.
What is the political history of Washington County, Wisconsin?
Akashic tracks 38 presidential elections in Washington County, Wisconsin from 1876 to 2024. Of those, 7 went Democratic and 26 went Republican. The county's typology — "Stable Rural Right" — captures where that record, its demographics, and its recent swing place it among American communities.