Washington County, OR demographics:
population, income, and more

Total population
603,947
0.6% year-over-year change
Median household income
$107,772/yr
3.2% year-over-year change
Housing units
243,278
1.2% year-over-year change

Washington County population

How many people live in Washington County

Washington County is home to 603,947 residents, according to the most recent Census data. Gender-wise, 49.9% of Washington County locals are male, and 50.1% are female.

Total population
603,947
0.6% year-over-year change
Gender ratio
Male
49.9%
301,580
Female
50.1%
302,367
Value Percent YoY change
Male 301,580 49.9% 0.6%
Female 302,367 50.1% 0.6%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Washington County is 38, with the population distributed as follows: about 17.6% are children under 15, then 11.9% are in the 15 to 24 age group. Adults between 25 and 44 make up 31.3% of the population, while another 24.5% fall into the 45 to 64 bracket. Finally, around 14.8% are 65 or older.

Median age
38.1
Age breakdown
Under 15
17.6%
15 to 24
11.9%
25 to 44
31.3%
45 to 64
24.5%
Over 65
14.8%
Value Percent YoY change
Under 15 106,333 17.6% -1.6%
15 to 24 71,768 11.9% -0.1%
25 to 44 188,871 31.3% 1.1%
45 to 64 147,767 24.5% 0.2%
Over 65 89,208 14.8% 3.7%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Washington County, 80.1% of the population are US-born citizens, while 10.8% have gained naturalized citizenship. At the same time, 9.2% of residents are non-citizens. As for race, 63.5% of locals are Caucasian, 2.3% are African American and 11.5% have Asian roots. Another 0.9% are Indigenous American, 0.5% are Pacific Islanders, while 7.4% identify as another race. There’s also a share of 13.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
80.1%
Non-U.S.-born citizens
10.8%
Non-citizens
9.2%
Value Percent YoY change
U.S.-born citizens 483,498 80.1% -0.1%
Non-U.S.-born citizens 65,181 10.8% 3.6%
Non-citizens 55,268 9.2% 3.3%
Racial breakdown
White
63.5%
Black or African American
2.3%
American Indian and Alaska Native
0.9%
Asian
11.5%
Native Hawaiian and other Pacific Islander
0.5%
Two or more races
13.8%
Other
7.4%
Value Percent
White 383,443 63.5%
Black or African American 13,996 2.3%
American Indian and Alaska Native 5,533 0.9%
Asian 69,474 11.5%
Native Hawaiian and other Pacific Islander 3,240 0.5%
Two or more races 83,241 13.8%
Other 45,020 7.4%

Households in Washington County

A peek inside Washington County households

Washington County has 235,406 households, with an average of 3 members in each. Of these, 66.3% are families, while the remaining 33.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
235,406
1.3% year-over-year change
Average people per household
3
Non-family households
79,307
Family households
156,099
Value Percent YoY change
Non-family households 79,307 33.7% 0.9%
Family households 156,099 66.3% 1.5%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Washington County

The housing landscape of Washington County

Washington County's housing consists of 243,278 units, with 57.3% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 9.1% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 1.9% of the housing landscape.

Housing units
243,278
1.2% year-over-year change
Housing types
Value Percent
1 unit, detached 139,319 57.3%
1 unit, attached 22,112 9.1%
2 units 3,837 1.6%
3 or 4 units 13,143 5.4%
5 to 9 units 17,617 7.2%
10 to 19 units 14,934 6.1%
20 to 49 units 9,301 3.8%
50 or more units 18,117 7.4%
Mobile home 4,548 1.9%
Boat, RV, van, etc. 350 0.1%
Homes built since 2020
5,904
81.0% year-over-year change

The age of buildings in Washington County

In Washington County, the median construction year is 1990. About 2.8% of homes were built before the 1940s, with another 2.1% going up by 1949. Most development happened in the second half of the 20th century. Then, 16.8% of homes were added from 2000 to 2009, 12% between 2010 and 2019, and 2.4% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 6,827 2.8% 0.7%
Built between 1940 and 1949 5,075 2.1% -2.6%
Built between 1950 and 1959 11,367 4.7% 2.2%
Built between 1960 and 1969 19,551 8% -2.5%
Built between 1970 and 1979 44,175 18.2% -0.8%
Built between 1980 and 1989 32,255 13.3% 1.3%
Built between 1990 and 1999 48,002 19.7% -3.2%
Built between 2000 and 2009 40,987 16.8% 2.5%
Built between 2010 and 2019 29,135 12% 3.9%
Built in 2020 or later 5,904 2.4% 81.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Washington County occupancy rates

Out of the 235,406 occupied housing units in Washington County, 60.8% are owner-occupied, while 39.2% are lived in by tenants. Meanwhile, 3.2% of all homes on the local market sit vacant.

Occupied housing units
235,406
1.3% year-over-year change
Occupancy breakdown
Renter occupied
92,176
Owner occupied
143,230
Value Percent YoY
change
Renter occupied 92,176 39.2% 1.4%
Owner occupied 143,230 60.8% 1.3%
Unoccupied housing units
3.2%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Washington County housing costs

Housing costs in Washington County come to a median of $1,920 per month, while tenants specifically pay a median gross rent of $1,849.

Median housing costs per month
$1,920/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Washington County
$1,849/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Washington County

Washington County education at a glance

About 23% of the population in Washington County went to high school, while 21% pursued college studies. Another 8.3% earned an associate degree and 27.5% hold a bachelor’s. Meanwhile, 16.7% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 16,551 3.5% -1.0%
High school diploma 108,985 23% 1.7%
College diploma 99,409 21% -1.6%
Associate degree 39,357 8.3% -1.1%
Bachelor's degree 130,301 27.5% 3.0%
Graduate degree 79,119 16.7% 2.8%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Washington County

How much people earn in Washington County

The average annual household income in Washington County was $137,880 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.9% change from the previous year. At the same time, the median income stood at $107,772, reflecting a +3.2% shift over the same period.

Average household income in Washington County
$137,880/year
2.9% year-over-year change
Median household income in Washington County
$107,772/year
3.2% year-over-year change

Washington County income by age

In Washington County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $118,860. Those with someone between 45 and 64 in charge, often well established professionally, earn $130,549 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $60,865, while those led by someone over 65, many of whom may be retired, have about $69,783 in earnings. Overall, 91.9% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $60,865 6.0%
25 - 44 $118,860 3.7%
45 - 64 $130,549 4.9%
Over 65 $69,783 1.4%
Above poverty level
544,801
Below poverty level
47,744
Value Percent YoY
change
Above poverty level 544,801 91.9% 0.6%
Below poverty level 47,744 8.1% 1.3%

Employment in Washington County

Workforce and job types in Washington County

The job market in Washington County is powered by 320,090 working residents, spread across a range of industries and roles. 83.8% of the working population are employed in professional or administrative positions, while 16.2% are in hands-on or service-based jobs. Also, 9% run their own businesses, 72.1% are employed by private companies, and 10.3% work in the public sector.

Workforce demographics

Working population
320,090
0.9% year-over-year change
White collar
268,156
Blue collar
51,934
Value Percent YoY change
White collar 268,156 83.8% 1.5%
Blue collar 51,934 16.2% -2.2%
Employer type
Self employees
9%
Private companies
72.1%
Governmental workers
10.3%
Not for profit companies
8.6%
Value Percent YoY change
Self employees 28,722 9% 0.9%
Private companies 230,711 72.1% 1.0%
Governmental workers 33,002 10.3% -0.2%
Not for profit companies 27,655 8.6% 0.8%
Unemployment rate
4.5%
-0.1% year-over-year change

Available workforce

The unemployment rate in Washington County stands at 4.5%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Washington County

How people get around in Washington County

In Washington County, the average commute time is 24 minutes. Commuting methods vary: 68.6% of residents travel by personal vehicle and 2.3% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
24 min
-0.4% year-over-year change
Means of transportation
Value Percent YoY change
Car 216,628 68.6% -2.3%
Taxicab 231 0.1% -4.2%
Bus or trolleybus 6,982 2.2% -3.5%
Subway or elevated 627 0.2% N/A
Railroad 606 0.2% -28.2%
Ferryboat 26 0% -73.2%
Motorcycle 315 0.1% 33.5%
Bicycle 1,795 0.6% 8.8%
Walk 7,221 2.3% -0.2%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Washington County by zipcode?

Zipcode Population Number of households Median income Average income
97056 12,795 5,156 $94,209 $111,851
97062 28,930 11,278 $105,407 $131,835
97106 4,855 1,907 $104,250 $129,140
97109 730 197 $150,893 $248,253
97113 16,268 5,586 $96,859 $119,427
97116 29,800 9,894 $92,613 $109,345
97005 28,311 11,762 $78,239 $97,186
97006 46,463 19,122 $104,790 $128,582
97007 47,895 18,864 $123,533 $156,978
97008 28,611 12,115 $96,116 $119,149

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FAQs about Washington County demographics 

What is the total population of Washington County?

Washington County has a total population of 603,947 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +0.6% compared to a year ago.

What is the gender ratio in Washington County?

The gender ratio in Washington County is as follows:
  • 49.9% males (301,580 residents)
  • 50.1% females (302,367 residents)

What is the median age in Washington County?

The median age in Washington County is 38.1.

What is the age distribution of the population in Washington County?

The age distribution in Washington County is as follows:
  • Under 15: 17.6% (106,333 residents)
  • Ages 15-24: 11.9% (71,768 residents)
  • Ages 25-44: 31.3% (188,871 residents)
  • Ages 45-64: 24.5% (147,767 residents)
  • Over 65: 14.8% (89,208 residents)

What is the racial and ethnic makeup of Washington County?

The racial and ethnic makeup of Washington County is as follows:
  • White: 63.5% (383,443 residents)
  • Black or African American: 2.3% (13,996 residents)
  • American Indian and Alaska Native: 0.9% (5,533 residents)
  • Asian: 11.5% (69,474 residents)
  • Native Hawaiian and Other Pacific Islander: 0.5% (3,240 residents)
  • Two or More Races: 13.8% (83,241 residents)
  • Other: 7.4% (45,020 residents)

What percentage of the population in Washington County are U.S.-born citizens?

U.S.-born citizens represent 80.1% of the population in Washington County.

How many housing units are there in Washington County?

There are 243,278 housing units in Washington County, reflecting a +1.2% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Washington County and what is the average household size?

Washington County has a total of 235,406 households, with an average of 3 people in each.

What is the median household income in Washington County?

Washington County has a median household income of $107,772, representing a +3.2% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Washington County?

The employment rate is 95.5% in Washington County, with a workforce of 320,090 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 83.8% (268,156 residents)
  • Blue-collar workers: 16.2% (51,934 residents)

Places of employment:
  • Self-employed: 9% (28,722 residents)
  • Private companies: 72.1% (230,711 residents)
  • Governmental workers: 10.3% (33,002 residents)
  • Not-for-profit companies: 8.6% (27,655 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025