Washington County, Oregon Population 2021

Washington County, Oregon's estimated population is 610,968 with a growth rate of 0.77% in the past year according to the most recent United States census data. Washington County, Oregon is the null largest county in Oregon. The 2010 Population was 531,638 and has seen a growth of 14.92% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
2021610,9684,6880.77%
2020606,2804,6880.78%
2019601,5924,6880.79%
2018596,9045,5680.94%
2017591,3366,4261.10%
2016584,91012,2462.14%
2015572,66410,3481.84%
2014562,3167,0521.27%
2013555,2646,7401.23%
2012548,5247,5571.40%
2011540,9679,3291.75%
2010531,638220,08470.64%
1990311,55465,74626.75%
1980245,80887,88855.65%
1970157,92065,68371.21%
196092,23730,96850.54%
195061,26922,07556.32%
194039,1948,91929.46%
193030,2753,89914.78%
192026,3764,85422.55%
191021,5227,05548.77%
190014,4672,49520.84%
189011,9724,89069.05%
18807,0822,82166.21%
18704,2611,46052.12%
18602,8011495.62%
18502,6520.00%
2021 Growth Rate
0.77%
County Website
State
Founded
July 5, 1843
County Seat
2010 Population
531,638
Growth Since 2010
14.92%
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Washington County, Oregon Population Growth

Population by Race

Race Population Percentage
White447,20175.86%
Asian62,54510.61%
Two or More Races31,9845.43%
Some Other Race29,8945.07%
Black or African American11,8972.02%
American Indian and Alaska Native3,4460.58%
Native Hawaiian and Other Pacific Islander2,5140.43%
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Washington County, Oregon Population By Race

Washington County, Oregon Population Pyramid 2021

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Washington County, Oregon Median Age

36.7


Total

35.8


Male

37.6


Female

Washington County, Oregon Adults

There are 452,589 adults, (76,361 of whom are seniors) in Washington County, Oregon.

Washington County, Oregon Age Dependency

56.7

Age Dependency Ratio

20.3

Old Age Dependency Ratio

36.4

Child Dependency Ratio

Washington County, Oregon Sex Ratio

Mujer

297,780

50.52%

Masculino

291,701

49.48%

Washington County, Oregon Population by Age

Washington County, Oregon Renter vs Owner Occupied by Household Type

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Washington County, Oregon Household Types

Type Owner Renter
Married76.2%23.8%
All61.6%38.4%
Masculino51.1%48.9%
Non Family44.4%55.6%
Mujer44%56%

61.6%

Rate of Home Ownership

Washington County, Oregon Households and Families

Type Count Average Size Owned
All219,0532.6661.6
Married117,1563.2876.2
Non Family72,4411.3744.4
Mujer20,3123.3844
Masculino9,1443.3551.1

3.19

Average Family Size

2.66

Average Household Size

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Washington County, Oregon Households by Type

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Education Attained Count Percentage
Less Than 9th Grade15,2283.77%
9th to 12th Grade16,3744.05%
High School Graduate70,24317.37%
Some College87,07221.53%
Associates Degree35,7438.84%
Bachelors Degree110,74827.39%
Graduate Degree68,97717.06%
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Washington County, Oregon Educational Attainment by Sex (over 25)

Washington County, Oregon Educational Attainment by Race

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Race Total High School Bachelors
White286,163276,250132,910
Hispanic51,28834,0168,268
Asian45,44842,46829,929
Other Race16,95710,4421,957
2+ Races13,48912,2585,048
Black7,8957,3723,617
Native American2,2771,931531
Islander1,5971,520377

The highest rate of high school graduation is among white people with a rate of 96.54%.

The highest rate of bachelors degrees is among asian people with a rate of 65.85%.

Washington County, Oregon Educational Attainment by Race

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Name Average Masculino Mujer
Overall$47,465$57,225$38,487
Less Than 9th Grade$26,106$31,541$20,897
High School Graduate$31,870$36,871$27,152
Some College$41,212$49,773$34,046
Bachelors Degree$61,129$76,672$48,306
Graduate Degree$88,533$106,991$66,383

$47,465

Average Earnings

$57,225

Average Male

$38,487

Average Female

Washington County, Oregon Earnings by Educational Attainment

Washington County, Oregon Language by Age

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Washington County, Oregon Language

75.24% of Washington County, Oregon residents speak only English, while 24.76% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 12.28% of the population.

Washington County, Oregon Language

Washington County, Oregon Poverty by Race

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Name Total In Poverty Poverty Rate
White383,74125,2626.58%
Hispanic97,37116,94617.40%
Asian62,2734,7147.57%
Other29,7174,55715.33%
Multiple31,5373,74311.87%
Black11,6462,30719.81%
Native3,32166419.99%
Islander2,4931425.70%

8.92%

Overall Poverty Rate

8.12%

Male Poverty Rate

9.71%

Female Poverty Rate

Poverty in Washington County, Oregon

The race most likely to be in poverty in Washington County, Oregon is Native, with 19.99% below the poverty level.

The race least likely to be in poverty in Washington County, Oregon is Islander, with 5.70% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.97%. Among those working part-time, it was 12.48%, and for those that did not work, the poverty rate was 14.82%.

Washington County, Oregon Poverty

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Name Poverty
Less Than 9th Grade17.80%
High School11.34%
Some College6.99%
Bachelors or Greater3.93%

Washington County, Oregon Poverty Rate by Education

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Name Poverty
Female Unemployed26.03%
Male Unemployed21.15%
Female Employed5.84%
Male Employed4.05%

Washington County, Oregon Poverty Rate by Employment Status and Sex

Washington County, Oregon Income by Household Type

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Name Median Mean
Households$82,215$104,153
Families$97,196$120,136
Married Families$109,448$132,562
Non Families$50,544$66,619
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Income by Household Type

Washington County, Oregon Marital Status

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Marriage Rates

53.2%

Overall Marriage Rate

54.6%

Male Marriage Rate

51.8%

Female Marriage Rate

Washington County, Oregon Married by Age and Sex

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Washington County, Oregon Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

Washington County, Oregon Marital Status by Race

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Washington County, Oregon Marital Status

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31,391

Number of Veterans

28,635

Male Veterans

2,756

Female Veterans

War Veterans
Vietnam10,380
First Gulf War7,214
Second Gulf War6,580
Korea2,272
World War II1,098

Washington County, Oregon Veterans by War

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Age Group Veterans
35 to 548,772
65 to 747,701
75+6,468
55 to 645,520
18 to 342,930

Washington County, Oregon Veterans by Age

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Name Veterans % of Total
White28,2268.05%
Hispanic1,5972.53%
2+ Races1,1486.65%
Asian9341.86%
Black5776.34%
Other Race2681.30%
Native American1385.16%
Islander1005.06%

Washington County, Oregon Veterans by Race

Washington County, Oregon Veterans by Education

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4.77%

Veteran Poverty Rate

26.11%

Veteran Disability Rate

Washington County, Oregon Veterans by Education

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69.1%

Labor Force Participation

66%

Employment Rate

4.4%

Unemployment Rate

Washington County, Oregon Employment by Age

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Washington County, Oregon Employment by Race

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Washington County, Oregon Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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41.76%

Born in Washington County, Oregon

82.29%

Native Born

17.71%

Foreign Born

9.67%

Non Citizen

8.04%

Naturalized

Place of Birth

82.29% of Washington County, Oregon residents were born in the United States, with 41.76% having been born in Oregon. 9.67% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Washington County, Oregon Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources