Washington County, Pennsylvania Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 18th-largest in Pennsylvania
The population of Washington County, Pennsylvania is 209,778 as of the 2023 American Community Survey, making it the 18th-largest county in Pennsylvania. The median household income is $77,487, the median home value is $220,600, and the median age is 44.2.
The population of Washington County has grown 1.2% since 2010 (207,944 → 210,434), a +0.09% annualized rate.
209,778
Population
+0.09%
Annual growth
245
People / sq mi
$77,487
Median Income
$220,600
Median Home Value
Washington County covers 857 sq mi of land at 244.8 people per square mile.
About Washington County, PA
What sets Washington County apart is where people work — remote work is unusually prominent here, at 13.8% versus 14.0% nationally. Washington County is a county in Pennsylvania with a population of 209,778. It ranks #18 among counties in Pennsylvania by population.
Median household income is $77,487, near the US median of $78,538. Only 5.8% of residents live in poverty, below the national 12.4%. The typical home is valued at $220,600, with typical rent around $922.
College attainment is above the local norm at 32.8%, below the national 35.0%. Remote work is on the higher side at 13.8%, close to the national 14.0%, and the average commute runs about 27 minutes each way.
The remote-work concentration is telling in Washington County — it skews toward higher-income, college-educated workers and reshapes both commute patterns and housing demand.
Washington County Population History (2010-2024)
The county of Washington County had a population of 207,944 in 2010 and 210,434 in 2024, a 1.2% growth over 14 years. The peak was 210,434 in 2024. Average annual growth rate: 0.09%.
210,434
Population (2024)
207,944
Population (2010)
210,434
Peak (2024)
0.09%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 207,944 |
| 2011 | 208,089 |
| 2012 | 208,350 |
| 2013 | 208,117 |
| 2014 | 208,050 |
| 2015 | 207,824 |
| 2016 | 207,469 |
| 2017 | 207,152 |
| 2018 | 207,114 |
| 2019 | 206,866 |
| 2020 | 209,414 |
| 2021 | 210,057 |
| 2022 | 209,962 |
| 2023 | 210,344 |
| 2024 | 210,434 |
Race & Ethnicity
| White | 90.8% |
| Black or African American | 3.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Age & Sex
44.2
Median Age
50.6%
Female
49.4%
Male
21.5%
Age 65+
Age Distribution
Children (under 15): 16.2% · Seniors (65+): 21.5%
Income & Poverty
| Median household income | $77,487+$1,406 vs state |
| Mean household income | $104,399 |
| Per-capita income | $44,392 |
| Poverty rate | 5.8%-2.3% vs state |
| Unemployment rate | 3.0% |
| Employment-to-population | 58.8% |
Top Industries by Employment
The largest employment sector in Washington County is professional & business services, accounting for 23.7% of workers.
How residents commute
0.8%
Drive alone
2.1%
Carpool
75.2%
Public transit
13.8%
Work from home
26.7 min
Avg commute
Housing
$220,600$-19,900 vs state
Median home value
$922
Median rent
76.4%
Homeownership rate
97,476
Total housing units
89.9%
Occupied
10.1%
Vacant
23.6%
Renter-occupied
Social & access
96.0%
With health insurance
92.6%
With broadband internet
15.6%
Foreign-born
6.7%
Veterans (18+)
14.8%
With a disability
96.8%
Speak language other than English at home
Education
94.0%
High School+
32.8%
Bachelor's+
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Part of Pennsylvania
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County rankings
Frequently Asked Questions
Washington County, Pennsylvania has a population of 209,778 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 18th-largest county in Pennsylvania. Population density is 245 people per square mile.
The population of Washington County has grown 1.2% since 2010 (207,944 → 210,434), a +0.09% annualized rate.
The median household income in Washington County, Pennsylvania is $77,487, with mean (average) household income of $104,399 and per-capita income of $44,392. 5.8% of residents live below the federal poverty level.
In Washington County, the largest racial and ethnic groups are White (90.8%), Black or African American (3.2%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Washington County, Pennsylvania is 44.2 years. Residents are 50.6% female and 49.4% male.
The median home value in Washington County is $220,600 and median monthly rent is $922. 76.4% of occupied housing units are owner-occupied. The county has 97,476 total housing units, 10.1% of which are vacant.
The largest employment sector in Washington County, Pennsylvania is professional, scientific, and management services, employing 23.7% of workers. The unemployment rate is 3.0%.
Philadelphia is among the largest cities associated with Washington County, Pennsylvania, with a population of 1,582,432.
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Population, race, income, age, and trends across Pennsylvania
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.