Washington County, Wisconsin Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Washington County, WI Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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A
Health Above averageHealthier than 90% of counties in Wisconsin
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B
Income Around averageAmong the top 5 wealthiest counties in Wisconsin
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C
Education Below averageBetter educated than 89% of counties in Wisconsin
Source: Map AI Methodology
Population: density and quick facts
| Metric | Washington County | Wisconsin Avg | U.S. Average |
|---|---|---|---|
| Population | 137,879 | 5,910,864 | 337,468,954 |
| Population density (per sq mi) | 316.7 | 90.2 | 86.4 |
| Population growth (%/yr) | 0.41% | 0.34% | 0.59% |
| Median age | 42.1 | 40.4 | 37.3 |
| Households | 57,061 | 2,477,189 | 130,235,071 |
Population in Washington County grew by 7.6% from 2009 to 2024, reaching 137,879 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Washington County is Gen X, aged 45–60, at 24.0% of residents. That is 3.3 points above Wisconsin as a whole.
- Gen Z 13–28 25,418 18.4% -2.9 pts
- Millennials 29–44 27,682 20.1% -0.7 pts
- Gen X 45–60 33,154 24.0% +3.3 pts
- Boomers 61–79 25,257 18.3% +0.5 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Wisconsin, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.0% of the people living in Washington County and men 50.0%.
- Women 50.0% Wisconsin 50.0%
- Men 50.0% Wisconsin 50.0%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Washington County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Washington County has a the economy index of B, which means it is quite prosperous.
| Metric | Washington County | Wisconsin Avg | U.S. Average |
|---|---|---|---|
| Median household income | $96,218 | $77,698 | $80,455 |
| Income growth (%/yr) | 3.96% | 4.41% | 4.80% |
| Unemployment rate | 2.5% | 3.2% | 5.2% |
The median household income in Washington County is about 24% higher than in Wisconsin.
Housing
| Metric | Washington County | Wisconsin Avg | U.S. Average |
|---|---|---|---|
| Median home price | $394,237 | $170,479 | $248,835 |
| Median rent | $1,153 | $1,087 | $1,407 |
| Homeownership rate | 78.1% | 67.8% | 65.2% |
The median home price in Washington County is about 28.5 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,153 per month for that long.
Commute Time & Mobility
Commuters in Washington County spend about 47 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 196 hours, about 8.2 full days, spent commuting.
| Metric | Washington County | Wisconsin Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 23.5 | 18.8 | 22.4 |
| Round-trip commute (min) | 47.1 | 37.5 | 44.8 |
| Yearly time spent (hours) | 196 | 156 | 187 |
| Estimated yearly cost | $6,078 | $4,846 | $5,790 |
| Work from home | 13.9% | 13.1% | 15.0% |
| Highway traffic (vehicles/day) | 8,497 | 6,703 | 8,813 |
| Local road traffic (vehicles/day) | 1,510 | 811 | 1,355 |
Fastest commutes among counties in
Wisconsin:
Ashland County (12.8 min), Door County (13.6 min), Eau Claire County (15.3 min).
Slowest:
Oconto County (26.4 min), St. Croix County (25.3 min), Waushara County (23.9 min).
The average commute time in Washington County is 24 minutes, longer than the 19 minutes in Wisconsin.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Washington County has a education index of C, which means it is somewhat educated.
| Metric | Washington County | Wisconsin Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 32.4% | 29.7% | 31.6% |
| Average household size | 2.40 | 2.33 | 2.53 |
Highest education index among counties in
Wisconsin:
Dane County (0.4), Ozaukee County (0.4), Waukesha County (0.4).
Lowest:
Clark County (0.2), Adams County (0.2), Juneau County (0.2).
Health
Washington County has a health index of A, which means it is very healthy.
| Metric | Washington County | Wisconsin Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.9 | 79.6 | 78.3 |
| Self-rated poor health | 9.9% | 13.2% | 16.3% |
| Smokers | 15.8% | 18.5% | 19.0% |
Highest health index among counties in
Wisconsin:
Dane County (0.8), Waukesha County (0.8), Ozaukee County (0.8).
Lowest:
Menominee County (0.8), Clark County (0.8), Forest County (0.8).
Washington County, WI Compared With Nearby Counties
Washington County, WI is the 2nd largest of the 6 counties compared here, 137,879 residents against a local median of 92,977. Washington County, WI's median home price, at $394,237, runs 82% above the $216,125 typical of the counties around it.
The counties themselves spread $264,542 on median home price, so Washington County, WI sits at one end of an already wide local range rather than apart from it. Washington County, WI has the highest median home price of the 6 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Washington County, WI | 137,879 | $96,218 #3/6 | $394,237 #1/6 | 23.5 min #6/6 |
| Waukesha County, WI | 411,699 | $106,607 | $365,714 | 21.4 min |
| Fond du Lac County, WI | 104,137 | $74,317 | $101,172 | 17.2 min |
| Dodge County, WI | 88,711 | $75,822 | $216,125 | 20.9 min |
| Ozaukee County, WI | 92,977 | $97,459 | $308,928 | 21.5 min |
| Jefferson County, WI | 86,001 | $84,347 | $110,356 | 21.7 min |
Frequently Asked Questions
Common questions about Washington County, Wisconsin.
How many people live in Washington County, Wisconsin?
About 137,879 people live in Washington County, Wisconsin, in 57,061 households of 2.4 people on average. The median age is 42.1, so residents are older than the U.S. median of 37.3 by about 5 years.
How densely populated is Washington County, Wisconsin?
Averaged over its land area, Washington County, Wisconsin has 317 people per square mile, a density typical of a mix of suburbs, small towns and farmland. That is about 3.7 times the U.S. average of 86.
Can a typical household afford a home in Washington County, Wisconsin?
The median home costs 4.1 times the median household income ($394,237 against $96,218), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,153 a month takes about 14% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is it hard to find a job in Washington County, Wisconsin?
Unemployment in Washington County, Wisconsin is only 2.5%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
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