Knox County
Knox County has roughly average household income, with a median household income of $74,222. Population has grown 29% since 2000. Median home value has roughly tripled since 2000, reaching $320,900. It sits in the top 10% of US counties for household income.
Population & growth
PEP 2025 EST:511,453 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Detailed origins & ancestry
+ 10 more hispanic origin groups with data
+ 7 more asian origin groups with data
+ 49 more ancestry groups with data
Education
Commute & transportation
Work & employment
People & community
Places similar to Knox County
Compare Knox County to nearby counties
How many people live in Knox County, Tennessee?
Knox County, Tennessee has about 494,148 residents according to the 2024 American Community Survey.
What is the median household income in Knox County, Tennessee?
The typical household in Knox County, Tennessee earns about $74,222 a year. Half of households make more than that, and half make less.
Is Knox County, Tennessee expensive?
In Knox County, Tennessee, the median home is worth about $320,900, and the typical rent is about $1,261 a month.
How educated are people in Knox County, Tennessee?
About 41.0% of adults age 25 and over in Knox County, Tennessee hold a bachelor's degree or higher.
What is the poverty rate in Knox County, Tennessee?
About 12.2% of people in Knox County, Tennessee live below the federal poverty line.
Has Knox County, Tennessee grown since 1990?
Yes, Knox County, Tennessee has grown since 1990. The population has added about 158,399 residents, a change of about 47 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024