Demographics of Washington County, Minnesota

Washington County, Minnesota had 286,895 people on July 1, 2025, by the Census Bureau’s estimate: +18,498 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Washington County, in four figures

286,895
Population: July 1, 2025, Vintage 2025 estimate.; +6.9%
Change since July 2020: +18,498 people.; 39.8 ±0.3
Median age: ACS 2020–⁠2024.; $115,345 ±$2,183
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Washington County, Minnesota's population grew 6.9% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Washington County, Minnesota's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Washington County, Minnesota's population grew 6.9% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Washington County, Minnesota's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	268,397	100.0	100.0
2021	272,698	101.6	100.2
2022	276,249	102.9	100.7
2023	278,890	103.9	101.6
2024	282,994	105.4	102.5
2025	286,895	106.9	103.1

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Population of Washington County, Minnesota on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	268,397	+832	+210	0	+541
2021	272,698	+4,301	+684	+147	+3,374
2022	276,249	+3,551	+682	+642	+2,379
2023	278,890	+2,641	+720	+614	+1,372
2024	282,994	+4,104	+584	+591	+2,960
2025	286,895	+3,901	+604	+281	+3,046

Age, 2020–2024

The median age is 39.8 ±0.3: for men 39.0 ±0.3 and for women 40.5 ±0.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Washington County by age, ACS 2020–2024
Age	People	Share	Minnesota	United States
Under 5	15,480 ±32	5.6% ±<0.1	5.8% ±<0.1	5.6% ±<0.1
5 to 17	50,714 ±1,086	18.4% ±0.4	17.0% ±0.1	16.3% ±<0.1
18 to 24	21,360 ±785	7.7% ±0.3	8.8% ±0.1	9.1% ±<0.1
25 to 44	70,537 ±1,152	25.5% ±0.4	26.6% ±0.1	26.9% ±<0.1
45 to 64	72,174 ±1,153	26.1% ±0.4	24.5% ±0.1	24.8% ±<0.1
65 and over	45,973 ±1,142	16.6% ±0.4	17.3% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $115,345 ±$2,183, and income per person $56,954 ±$1,151, in 2024 dollars. The median is $89,062 ±$409 in Minnesota and $80,734 ±$166 in the United States.

Households by income

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Households in Washington County by income, ACS 2020–2024
Household income	Households	Share	Minnesota	United States
Under $25,000	7,042 ±663	6.7% ±0.6	11.7% ±0.2	14.6% ±<0.1
$25,000 to $49,999	10,946 ±889	10.4% ±0.8	14.9% ±0.2	16.7% ±<0.1
$50,000 to $74,999	12,935 ±935	12.3% ±0.9	15.6% ±0.2	15.5% ±<0.1
$75,000 to $99,999	13,583 ±943	12.9% ±0.9	13.2% ±0.1	12.6% ±<0.1
$100,000 to $149,999	23,460 ±1,241	22.2% ±1.2	19.6% ±0.2	17.5% ±<0.1
$150,000 to $199,999	14,648 ±897	13.9% ±0.8	11.2% ±0.2	9.6% ±<0.1
$200,000 or more	22,963 ±889	21.8% ±0.8	13.8% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Washington County by age, ACS 2020–2024
Age	Below poverty	Rate	Minnesota	United States
All ages	13,989 ±1,650	5.1% ±0.6	9.3% ±0.2	12.5% ±0.1
Under 18	3,258 ±610	5.0% ±0.9	10.3% ±0.3	16.1% ±0.1
18 to 59	6,691 ±1,047	4.7% ±0.7	9.1% ±0.2	11.6% ±0.1
60 and over	4,040 ±476	6.4% ±0.7	8.7% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Washington County, ACS 2020–2024
Measure	Washington County	Minnesota	United States
Housing units	109,307 ±100	2,545,030 ±1,535	143,775,355 ±10,234
Occupied	96.6% ±0.5	90.7% ±0.2	89.9% ±0.1
Vacant	3.4% ±0.5	9.3% ±0.2	10.1% ±0.1
Owner occupied	81.3% ±0.9	72.2% ±0.3	65.2% ±0.3
Renter occupied	18.7% ±1.0	27.8% ±0.2	34.8% ±0.1
Median home value	$422,000 ±$5,583	$329,300 ±$903	$332,700 ±$236
Median gross rent	$1,710 ±$45	$1,280 ±$7	$1,413 ±$2
Median year built	1992 ±1	1979 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Washington County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Minnesota	United States
Hispanic or Latino	14,552 ±0	5.3% ±<0.1	6.4% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	213,144 ±816	77.2% ±0.3	75.9% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	15,141 ±783	5.5% ±0.3	6.9% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	21,270 ±544	7.7% ±0.2	5.1% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	576 ±133	0.2% ±<0.1	0.7% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	107 ±39	< 0.1% ±<0.1	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	1,317 ±637	0.5% ±0.2	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	10,131 ±1,028	3.7% ±0.4	4.5% ±0.1	4.3% ±<0.1

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Washington County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Minnesota	United States
Born in the state	186,534 ±2,305	67.5% ±0.8	67.1% ±0.2	57.3% ±<0.1
Born in another state	63,852 ±2,120	23.1% ±0.8	23.4% ±0.1	26.9% ±<0.1
Born a citizen outside the states	2,258 ±420	0.8% ±0.2	0.9% ±<0.1	1.7% ±<0.1
Born abroad	23,594 ±1,253	8.5% ±0.5	8.7% ±0.1	14.1% ±<0.1
Naturalized citizens	15,968 ±891	5.8% ±0.3	5.1% ±0.1	7.4% ±<0.1
Not citizens	7,626 ±1,058	2.8% ±0.4	3.6% ±0.1	6.8% ±<0.1

Washington County among the counties of Minnesota

5th of 87 by population, July 2025. Every one is listed on the Minnesota page.

Counties of Minnesota near Washington County in population, July 2025
County	July 2025	Change since 2020
Hennepin County	1,284,784	+0.2%
Ramsey County	541,623	−1.8%
Dakota County	457,710	+3.9%
Anoka County	381,605	+4.7%
Washington County	286,895	+6.9%
St. Louis County	200,518	+0.2%
Olmsted County	166,731	+2.3%
Stearns County	164,110	+3.6%
Scott County	159,017	+5.1%
Wright County	157,559	+11.1%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026