Seminole County, Florida
Located in Florida, Seminole County has a population of 481,470 residents and a median age of 39.8 years, making it the #151 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 9.0%. The median home value is $386,900, and the median household income is $85,761, which is 14% above the national median.
Demographics
Seminole County has a population of 481,470, making it the #151 most populous county in the US. The median age is 39.8 years, which is 2.3% 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 Seminole County is $85,761, ranking #406 out of 3,222 counties — 14.1% above the national median. The poverty rate is 9.0% and unemployment stands at 4.1%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Seminole County is $386,900 (+37.2% vs national). Renters pay a median of $1,783/mo and the homeownership rate is 66.2%.
Median Home Value Trend
Rankings →Household Type
Education
In Seminole County, 42.7% of adults age 25+ hold a bachelor's degree or higher, which is 26.8% above the national average, ranking #204 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Seminole County is 79.1 years. 14.6% of adults report poor or fair health and 11.5% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
12.4% of adults in Seminole County smoke , 31.4% are obese , and 20.3% report excessive drinking. The drug overdose death rate is 30.3 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Seminole County is 4.3 per 100,000 and the suicide rate is 12.8 per 100,000. Motor vehicle deaths occur at a rate of 10.6 per 100,000.
Homicide Rate Trend
Families & Children
10.6% of children in Seminole County live in poverty and the infant mortality rate is 5.5 per 1,000 live births. The teen birth rate is 8.5 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Seminole County is 75.4%. The mean commute time is 29.4 min, which is 6.6% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Seminole County voted Republican with a margin of 3.5%. The vote was 47.6% Dem / 51.1% Rep. Compared to 2020, the margin shifted 6.3 toward Republicans .
Vote Share Over Time
About Seminole County, Florida
Seminole County, Florida has a total population of 481,470, making it the 151st most populous county in the United States. The median age in Seminole County is 39.8 years, which is 2.3% above the national median of 38.9 years.
The median household income in Seminole County is $85,761, which ranks #406 of 3,222 counties nationwide. This is 14.1% above the national median of $75,149. The poverty rate is 9.0%, lower than the national rate of 12.6%. The unemployment rate stands at 4.1%.
The median home value in Seminole County is $386,900, 37.2% above the national median. Renters in Seminole County pay a median gross rent of $1,783 per month. The homeownership rate is 66.2%, compared to the national rate of 64.4%.
In Seminole County, 42.7% of residents aged 25 and older hold a bachelor's degree or higher, 26.8% above the national average of 33.7%. Health insurance coverage stands at 90.5% of the population. The average commute time for workers is 29.4 min.
Seminole County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 54.7% of the population, followed by Hispanic or Latino (23.9%) and Black (non-Hispanic) (11.1%).
All data for Seminole County, Florida 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.