Washington County
Washington County has lower-than-average household income, with a median household income of $63,603. Population has declined 7% since 2000. 22% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has more than doubled since 2000, reaching $185,600. With a median age of 44.0, the population is older than the US median of 38.9.
Population & growth
PEP 2025 EST:58,389 residents (Census Bureau Vintage 2025, released March 2026)
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Race & ethnicity
Detailed origins & ancestry
+ 32 more ancestry groups with data
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How many people live in Washington County, Ohio?
Washington County, Ohio has about 58,978 residents according to the 2024 American Community Survey.
What is the median household income in Washington County, Ohio?
The typical household in Washington County, Ohio earns about $63,603 a year. Half of households make more than that, and half make less.
Is Washington County, Ohio expensive?
In Washington County, Ohio, the median home is worth about $185,600, and the typical rent is about $852 a month.
How educated are people in Washington County, Ohio?
About 21.9% of adults age 25 and over in Washington County, Ohio hold a bachelor's degree or higher.
What is the poverty rate in Washington County, Ohio?
About 13.7% of people in Washington County, Ohio live below the federal poverty line.
Has Washington County, Ohio grown since 1990?
Yes, Washington County, Ohio has shrunk since 1990. The population has lost about 3,276 residents, a change of about -5 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024