Washington County, Tennessee
Located in Tennessee, Washington County has a population of 136,261 residents and a median age of 40.2 years, making it the #487 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 15.5%. The median home value is $249,000, and the median household income is $62,809, which is 16% below the national median.
Demographics
Washington County has a population of 136,261, making it the #487 most populous county in the US. The median age is 40.2 years, which is 3.3% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Washington County is $62,809, ranking #1,819 out of 3,222 counties — 16.4% below the national median. The poverty rate is 15.5% and unemployment stands at 4.7%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Washington County is $249,000 (-11.7% vs national). Renters pay a median of $1,005/mo and the homeownership rate is 64.5%.
Median Home Value Trend
Rankings →Household Type
Education
In Washington County, 34.3% of adults age 25+ hold a bachelor's degree or higher, which is 1.8% above the national average, ranking #503 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Washington County is 73.9 years. 21.4% of adults report poor or fair health and 12.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
21.5% of adults in Washington County smoke , 37.1% are obese , and 18.5% report excessive drinking. The drug overdose death rate is 42.4 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Washington County is 4.3 per 100,000 and the suicide rate is 21.2 per 100,000. Motor vehicle deaths occur at a rate of 11.4 per 100,000.
Homicide Rate Trend
Families & Children
18.1% of children in Washington County live in poverty and the infant mortality rate is 8.8 per 1,000 live births. The teen birth rate is 15.3 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Washington County is 59.5%. The mean commute time is 23.6 min, which is 14.6% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Washington County voted Republican with a margin of 39.5%. The vote was 29.6% Dem / 69.1% Rep. Compared to 2020, the margin shifted 3.3 toward Republicans .
Vote Share Over Time
About Washington County, Tennessee
Washington County, Tennessee has a total population of 136,261, making it the 487th most populous county in the United States. The median age in Washington County is 40.2 years, which is 3.3% above the national median of 38.9 years.
The median household income in Washington County is $62,809, which ranks #1,819 of 3,222 counties nationwide. This is 16.4% below the national median of $75,149. The poverty rate is 15.5%, higher than the national rate of 12.6%. The unemployment rate stands at 4.7%.
The median home value in Washington County is $249,000, 11.7% below the national median. Renters in Washington County pay a median gross rent of $1,005 per month. The homeownership rate is 64.5%, compared to the national rate of 64.4%.
In Washington County, 34.3% of residents aged 25 and older hold a bachelor's degree or higher, 1.8% above the national average of 33.7%. Health insurance coverage stands at 89.6% of the population. The average commute time for workers is 23.6 min.
Washington County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 85.9% of the population, followed by Hispanic or Latino (4.9%) and Two or More Races (3.8%).
All data for Washington County, Tennessee comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.