Fairfield County
Fairfield County is wealthier than most US places, with a median household income of $90,966. Population has grown 33% since 2000. Median home value has more than doubled since 2000, reaching $298,800. It ranks in the top 5% of US counties for household income. Households here earn about 27% more than the Ohio median.
Population & growth
PEP 2025 EST:169,752 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Detailed origins & ancestry
+ 5 more hispanic origin groups with data
+ 2 more asian origin groups with data
+ 44 more ancestry groups with data
Education
Commute & transportation
Work & employment
People & community
Places similar to Fairfield County
Compare Fairfield County to nearby counties
How many people live in Fairfield County, Ohio?
Fairfield County, Ohio has about 163,453 residents according to the 2024 American Community Survey.
What is the median household income in Fairfield County, Ohio?
The typical household in Fairfield County, Ohio earns about $90,966 a year. Half of households make more than that, and half make less.
Is Fairfield County, Ohio expensive?
In Fairfield County, Ohio, the median home is worth about $298,800, and the typical rent is about $1,172 a month.
How educated are people in Fairfield County, Ohio?
About 32.3% of adults age 25 and over in Fairfield County, Ohio hold a bachelor's degree or higher.
What is the poverty rate in Fairfield County, Ohio?
About 8.0% of people in Fairfield County, Ohio live below the federal poverty line.
Has Fairfield County, Ohio grown since 1990?
Yes, Fairfield County, Ohio has grown since 1990. The population has added about 59,992 residents, a change of about 58 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024