COUNTY · 2000 CENSUS
Washington County
Oregon · 445,342 residents · 724.272 sq mi
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The short version
Washington County is wealthier than most US places, with a median household income of $52,122. Population has grown 43% since 1990. 35% of adults hold a bachelor's degree or higher, well above the national rate of 24%. Median home value has more than doubled since 1990, reaching $180,400. Households here earn about 27% more than the Oregon median.
At a glance
Wealthier
above the US median
US median: $42,589
Younger
median age 33.0
US median: 35.2
More educated
35% hold a bachelor's degree
US average: 24%
Less affordable
home values up 61%, inflation adjusted
US median home: $120,530
Section 01
Population & growth
Population, 1990 – 2024
2024604K
Age distribution, 2000
Under 57.9%(35,111)
5 to 97.7%(34,317)
10 to 147.1%(31,715)
15 to 196.6%(29,553)
20 to 246.8%(30,254)
25 to 3417.1%(76,375)
35 to 4416.9%(75,433)
45 to 5413.8%(61,343)
55 to 647.2%(31,890)
65 to 744.3%(19,218)
75 to 843.3%(14,645)
85 and over1.2%(5,488)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$52,122
+11%inflation adjusted, since 1990
from $35,554 in 1990
US average: $42,589
1990 – 2024
Section 03
Housing
$180,400
+61%inflation adjusted, since 1990
from $85,100 in 1990
US average: $120,530
1990 – 2024
RELATED:See current rent listings in Washington County on RentDataNow
Section 04
Race & ethnicity
1990
White, non-Hispanic92.1%(286,862)
Black0.6%(1,998)
Hispanic / Latino4.6%(14,210)
Asian4.1%(12,891)
2000
White, non-Hispanic77.7%(346,251)
Black1.1%(4,778)
Hispanic / Latino11.2%(49,735)
Asian6.6%(29,552)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry
Detailed origin tables are available for 2024; showing 2024 data.
Hispanic origin
Mexican13.8%(83,387)
Central American1.6%(9,453)
South American1%(5,798)
Guatemalan0.9%(5,251)
Puerto Rican0.5%(3,052)
Spaniard0.4%(2,624)
Salvadoran0.3%(2,045)
Venezuelan0.3%(1,537)
Cuban0.2%(1,361)
Colombian0.2%(1,068)
Ecuadorian0.2%(948)
Costa Rican0.1%(889)
+ 10 more hispanic origin groups with data
Peruvian0.1%(862)
Dominican0.1%(611)
Nicaraguan0.1%(485)
Panamanian0.1%(435)
Uruguayan0.1%(424)
Chilean0.1%(370)
Honduran0.1%(343)
Argentine0%(275)
Bolivian0%(253)
Paraguayan0%(17)
Asian origin
Asian Indian3.3%(20,194)
Chinese1.6%(9,956)
Vietnamese1.2%(7,447)
Filipino1.2%(7,415)
Korean1.1%(6,595)
Japanese0.8%(4,652)
Taiwanese0.3%(1,696)
Cambodian0.2%(1,180)
Bangladeshi0.2%(1,176)
Nepalese0.2%(1,173)
Thai0.2%(968)
Kazakh0.2%(919)
+ 10 more asian origin groups with data
Hmong0.1%(892)
Pakistani0.1%(473)
Sri Lankan0.1%(440)
Laotian0.1%(395)
Burmese0.1%(348)
Indonesian0%(257)
Mien0%(160)
Uzbek0%(27)
Malaysian0%(22)
Okinawan0%(11)
Pacific Islander origin
Native Hawaiian0.6%(3,543)
Chamorro0.2%(1,153)
Samoan0.2%(941)
Marshallese0.1%(677)
Tongan0.1%(312)
Fijian0%(286)
Guamanian0%(117)
Chuukese0%(71)
Ancestry
German14.2%(85,459)
English12.8%(77,377)
Irish9.1%(55,228)
American5.1%(30,628)
Italian3.1%(18,816)
Norwegian2.9%(17,504)
Scottish2.6%(15,971)
French2.2%(13,392)
Swedish2%(11,918)
Polish1.6%(9,665)
Dutch1.5%(8,851)
Arab1.1%(6,591)
+ 51 more ancestry groups with data
Scotch-Irish0.9%(5,278)
Subsaharan African0.9%(5,255)
Russian0.8%(4,581)
Danish0.8%(4,580)
Welsh0.7%(4,303)
British0.6%(3,811)
Swiss0.6%(3,479)
Finnish0.5%(3,131)
Ukrainian0.5%(3,015)
Iranian0.4%(2,469)
Portuguese0.4%(2,468)
Greek0.4%(2,352)
Hungarian0.4%(2,159)
Canadian0.4%(2,148)
French Canadian0.3%(2,010)
Czech0.3%(1,994)
Romanian0.3%(1,819)
West Indian0.3%(1,533)
Lebanese0.2%(1,484)
Iraqi0.2%(1,287)
Austrian0.2%(1,173)
Israeli0.2%(993)
Lithuanian0.2%(963)
Croatian0.1%(874)
Nigerian0.1%(834)
Armenian0.1%(767)
Jamaican0.1%(740)
Belgian0.1%(694)
Turkish0.1%(644)
Serbian0.1%(456)
Slovene0.1%(452)
Egyptian0.1%(436)
Somali0.1%(426)
Slovak0.1%(414)
Haitian0.1%(411)
Ghanaian0.1%(399)
Brazilian0.1%(388)
Kenyan0.1%(369)
Palestinian0.1%(316)
Ethiopian0%(290)
Moroccan0%(248)
Jordanian0%(246)
Bulgarian0%(220)
Australian0%(162)
Syrian0%(160)
Macedonian0%(152)
Latvian0%(130)
Guyanese0%(92)
Trinidadian & Tobagonian0%(23)
Cape Verdean0%(12)
Barbadian0%(9)
Section 05
Education
High school or higher
88.9%
+0.8 ptssince 1990
from 88.2% in 1990
US average: 80.3%
Section 06
Commute & transportation
Section 07
Work & employment
No data for the years selected.
Section 08
People & community
No data for the years selected.
Marital status
Men 15+
Never married29%(49,323)
Married61%(103,662)
Widowed1.6%(2,638)
Divorced8.4%(14,273)
Women 15+
Never married21.8%(38,030)
Married59.2%(103,175)
Widowed7.3%(12,739)
Divorced11.7%(20,434)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Drill deeper
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Compare Washington County to nearby counties
WASHINGTON COUNTY VS
Yamhill County
Income$90,063+73%
Home value$471,700+161%
Population110,024−82%
SEE FULL COMPARISON →
WASHINGTON COUNTY VS
Columbia County
Income$87,458+68%
Home value$421,600+134%
Population54,091−91%
SEE FULL COMPARISON →
WASHINGTON COUNTY VS
Tillamook County
Income$69,105+33%
Home value$430,200+138%
Population27,384−96%
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WASHINGTON COUNTY VS
Multnomah County
Income$88,766+70%
Home value$552,700+206%
Population795,391+30%
SEE FULL COMPARISON →
Frequently asked
How many people live in Washington County, Oregon?
Washington County, Oregon has about 445,342 residents according to the 2000 Census.
What is the median household income in Washington County, Oregon?
The typical household in Washington County, Oregon earns about $52,122 a year. Half of households make more than that, and half make less.
Is Washington County, Oregon expensive?
In Washington County, Oregon, the median home is worth about $180,400, and the typical rent is about $720 a month.
How educated are people in Washington County, Oregon?
About 34.5% of adults age 25 and over in Washington County, Oregon hold a bachelor's degree or higher.
What is the poverty rate in Washington County, Oregon?
About 7.4% of people in Washington County, Oregon live below the federal poverty line.
Has Washington County, Oregon grown since 1990?
Yes, Washington County, Oregon has grown since 1990. The population has added about 133,788 residents, a change of about 43 percent over that period.
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All counties in OregonDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024