Washington County
Washington County is wealthier than most US places, with a median household income of $106,638. Population has held roughly steady since 2000. 52% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value has roughly tripled since 2000, reaching $510,800. With a median age of 45.5, the population is older than the US median of 38.9. It ranks in the top 1% of US counties for household income.
Population & growth
PEP 2025 EST:129,795 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Detailed origins & ancestry
+ 8 more hispanic origin groups with data
+ 1 more asian origin group with data
+ 41 more ancestry groups with data
Education
Commute & transportation
Work & employment
People & community
Places similar to Washington County
Compare Washington County to nearby counties
How many people live in Washington County, Rhode Island?
Washington County, Rhode Island has about 130,344 residents according to the 2024 American Community Survey.
What is the median household income in Washington County, Rhode Island?
The typical household in Washington County, Rhode Island earns about $106,638 a year. Half of households make more than that, and half make less.
Is Washington County, Rhode Island expensive?
In Washington County, Rhode Island, the median home is worth about $510,800, and the typical rent is about $1,327 a month.
How educated are people in Washington County, Rhode Island?
About 52.4% of adults age 25 and over in Washington County, Rhode Island hold a bachelor's degree or higher.
What is the poverty rate in Washington County, Rhode Island?
About 8.2% of people in Washington County, Rhode Island live below the federal poverty line.
Has Washington County, Rhode Island grown since 1990?
Yes, Washington County, Rhode Island has grown since 1990. The population has added about 20,338 residents, a change of about 18 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024