Washington County, Wisconsin: Republican loyalist county. In 2024, voted R+36%. Republican peak: R+60 in 1920.
Key facts
- 2024 presidential margin
- R+36MIT Election Lab
- Political archetype
- Republican loyalistAkashic 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.
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Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
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
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.
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.
Median household income
2024 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
Source · American Community Survey 5-year estimates, 2024 release.
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.
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.
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 in Washington County reached its widest at sixty points in 1920. The margin in 2024 was thirty-six points, in line with the county's deep historical pattern.
Its loyalty is rooted in its place. Median household income of $96,359, a 91% non-Hispanic-white share, and a population of 137,879 together describe a community whose political habits are deeply settled. The county's voting pattern over the last decade is most similar to that of Klamath County and Polk County.
Most similar counties
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Washington County, Wisconsin — The Long Memory. Akashic Intelligence — The Long Memory. https://akashic.app/county/55131/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in Wisconsin
More republican loyalist 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 archetype?
Akashic classifies Washington County, Wisconsin as a "Republican loyalist" county based on its long-arc presidential voting pattern. 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 archetype — "Republican loyalist" — captures the overall trajectory of that voting record.