Spencer County, Kentucky
Located in Kentucky, Spencer County has a population of 20,193 residents and a median age of 42.9 years, making it the #1,867 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 9.8%. The median home value is $330,000, and the median household income is $102,618, which is 37% above the national median.
Demographics
Spencer County has a population of 20,193, making it the #1,867 most populous county in the US. The median age is 42.9 years, which is 10.3% 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 Spencer County is $102,618, ranking #150 out of 3,222 counties — 36.6% above the national median. The poverty rate is 9.8% and unemployment stands at 5.0%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Spencer County is $330,000 (+17.1% vs national). Renters pay a median of $987/mo and the homeownership rate is 87.9%.
Median Home Value Trend
Rankings →Household Type
Education
In Spencer County, 23.6% of adults age 25+ hold a bachelor's degree or higher, which is 30.0% below the national average, ranking #1,417 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Spencer County is 76.2 years. 20.2% of adults report poor or fair health and 5.4% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
19.1% of adults in Spencer County smoke , 36.9% are obese , and 16.9% report excessive drinking. The drug overdose death rate is 25.1 per 100,000.
Adult Smoking Trend
Safety
The suicide rate is 22.2 per 100,000. Motor vehicle deaths occur at a rate of 14.1 per 100,000.
Suicide Rate Trend
Families & Children
7.9% of children in Spencer County live in poverty . The teen birth rate is 14.2 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Spencer County is 78.6%. The mean commute time is 36.2 min, which is 31.2% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Spencer County voted Republican with a margin of 56.8%. The vote was 21% Dem / 77.8% Rep. Compared to 2020, the margin shifted 2.5 toward Republicans .
Vote Share Over Time
About Spencer County, Kentucky
Spencer County, Kentucky has a total population of 20,193, making it the 1,867th most populous county in the United States. The median age in Spencer County is 42.9 years, which is 10.3% above the national median of 38.9 years.
The median household income in Spencer County is $102,618, which ranks #150 of 3,222 counties nationwide. This is 36.6% above the national median of $75,149. The poverty rate is 9.8%, lower than the national rate of 12.6%. The unemployment rate stands at 5.0%.
The median home value in Spencer County is $330,000, 17.1% above the national median. Renters in Spencer County pay a median gross rent of $987 per month. The homeownership rate is 87.9%, compared to the national rate of 64.4%.
In Spencer County, 23.6% of residents aged 25 and older hold a bachelor's degree or higher, 30.0% below the national average of 33.7%. Health insurance coverage stands at 96.1% of the population. The average commute time for workers is 36.2 min.
Spencer County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 92.5% of the population, followed by Two or More Races (3.1%) and Hispanic or Latino (2.7%).
All data for Spencer County, Kentucky 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.