Waukesha County, Wisconsin Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 3rd-largest in Wisconsin

The population of Waukesha County, Wisconsin is 409,040 as of the 2023 American Community Survey, making it the 3rd-largest county in Wisconsin. The median household income is $104,100, the median home value is $373,600, and the median age is 43.3.

The population of Waukesha County has grown 6.9% since 2010 (390,051 → 417,029), a +0.48% annualized rate.

Waukesha County within Wisconsin · Source: US Census TIGER/Line via us-atlas

409,040

Population

+0.48%

Annual growth

744

People / sq mi

$104,100

Median Income

$373,600

Median Home Value

Waukesha County covers 550 sq mi of land at 744.1 people per square mile.

About Waukesha County, WI

Waukesha County is a county in Wisconsin with a population of 409,040. It ranks #3 among counties in Wisconsin by population. The median age is 43.3, older than the national median. The population is 49.6% male and 50.4% female.

The median household income in Waukesha County is $104,100, above the US median of $74,580. 3.5% of residents live below the federal poverty level. Home values sit at a median of $373,600, with monthly rent averaging $1,300. The homeownership rate of 76.4% is higher than the national rate of 64.8%.

Educational attainment in Waukesha County reflects 47.9% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 15.3% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 22.8 minutes each way.

Waukesha County Population History (2010-2024)

The county of Waukesha County had a population of 390,051 in 2010 and 417,029 in 2024, a 6.9% growth over 14 years. The peak was 417,029 in 2024. Average annual growth rate: 0.48%.

417,029

Population (2024)

390,051

Population (2010)

417,029

Peak (2024)

0.48%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	390,051	-	-	estimate
2011	390,895	+844	+0.22%	estimate
2012	392,893	+1,998	+0.51%	estimate
2013	394,257	+1,364	+0.35%	estimate
2014	395,518	+1,261	+0.32%	estimate
2015	396,377	+859	+0.22%	estimate
2016	398,664	+2,287	+0.58%	estimate
2017	401,099	+2,435	+0.61%	estimate
2018	402,705	+1,606	+0.40%	estimate
2019	404,545	+1,840	+0.46%	estimate
2020	407,518	+2,973	+0.73%	estimate
2021	409,191	+1,673	+0.41%	estimate
2022	411,061	+1,870	+0.46%	estimate
2023	414,013	+2,952	+0.72%	estimate
2024	417,029	+3,016	+0.73%	estimate

Race & Ethnicity

White	87.9%
Black or African American	1.5%
Asian	0.0%
Hispanic or Latino (any race)	0.8%
Two or More Races	0.0%

Age & Sex

43.3

Median Age

50.4%

Female

49.6%

Male

19.9%

Age 65+

Age Distribution

Under 5

5.1%

5–9

5.9%

10–14

6.2%

15–19

6.3%

20–24

5.2%

25–34

10.4%

35–44

13.0%

45–54

12.8%

55–59

7.7%

60–64

7.5%

65–74

11.7%

75–84

5.6%

85+

2.6%

Children (under 15): 17.2% · Seniors (65+): 19.9%

Income & Poverty

Median household income	$104,100+$28,430 vs state
Mean household income	$136,213
Per-capita income	$57,291
Poverty rate	3.5%-3.1% vs state
Unemployment rate	1.7%
Employment-to-population	65.4%

Top Industries by Employment

Professional & business services

23.5%

Manufacturing

17.4%

Finance & real estate

11.2%

Information

8.8%

Education & health care

6.7%

Construction

6.2%

Arts, entertainment & food

4.3%

Retail trade

3.9%

The largest employment sector in Waukesha County is professional & business services, accounting for 23.5% of workers.

How residents commute

0.2%

Drive alone

1.1%

Carpool

77.5%

Public transit

15.3%

Work from home

22.8 min

Avg commute

Housing

$373,600+$126,200 vs state

Median home value

$1,300

Median rent

76.4%

Homeownership rate

173,567

Total housing units

96.1%

Occupied

3.9%

Vacant

23.6%

Renter-occupied

Social & access

97.0%

With health insurance

96.1%

With broadband internet

18.9%

Foreign-born

5.8%

Veterans (18+)

9.4%

With a disability

92.4%

Speak language other than English at home

Education

97.1%

High School+

47.9%

Bachelor's+

Largest cities in Wisconsin

Milwaukee (569,756)Madison (275,568)Green Bay (106,585)Kenosha (99,147)Racine (77,155)Appleton (74,873)Waukesha (70,779)Eau Claire (69,274)Oshkosh (66,247)Janesville (65,813)All Wisconsin cities →

Other counties in Wisconsin

Milwaukee County (927,656)Dane County (564,777)Brown County (269,425)Racine County (196,888)Outagamie County (191,537)Winnebago County (171,357)Kenosha County (168,413)Rock County (163,944)Marathon County (138,067)Washington County (137,320)All Wisconsin counties →

Part of Wisconsin

Wisconsin demographic profile All Wisconsin data →

Metro areas in Wisconsin

Minneapolis (3,693,351)Milwaukee (1,566,361)Madison (683,967)Green Bay (329,375)Duluth (280,710)Appleton (244,163)Racine (196,888)Eau Claire (172,886)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Common questions about Waukesha County, WI

What is the population of Waukesha County, WI?What is the median household income in Waukesha County, WI?What is the median home value in Waukesha County, WI?What are the demographics of Waukesha County, WI?What is the cost of living in Waukesha County, WI?Is Waukesha County, WI growing?

Frequently Asked Questions

Waukesha County, Wisconsin has a population of 409,040 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 3rd-largest county in Wisconsin. Population density is 744 people per square mile.

The population of Waukesha County has grown 6.9% since 2010 (390,051 → 417,029), a +0.48% annualized rate.

The median household income in Waukesha County, Wisconsin is $104,100, with mean (average) household income of $136,213 and per-capita income of $57,291. 3.5% of residents live below the federal poverty level.

In Waukesha County, the largest racial and ethnic groups are White (87.9%), Black or African American (1.5%), Hispanic or Latino (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Waukesha County, Wisconsin is 43.3 years. Residents are 50.4% female and 49.6% male.

The median home value in Waukesha County is $373,600 and median monthly rent is $1,300. 76.4% of occupied housing units are owner-occupied. The county has 173,567 total housing units, 3.9% of which are vacant.

The largest employment sector in Waukesha County, Wisconsin is professional, scientific, and management services, employing 23.5% of workers. The unemployment rate is 1.7%.

Milwaukee is among the largest cities associated with Waukesha County, Wisconsin, with a population of 569,756.