Seminole County's 2026 population is estimated at 505,307, reflecting a 1.07% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Seminole County is the 14th largest county in Florida. The 2010 population was 423,072 and has grown 19.44% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.8 years
Female: 40.9 years
Male: 38.5 years
There are 382,555 adults, (80,052 of whom are seniors) in Seminole County.
Female: 247,071 (51.3%)
Male: 234,399 (48.7%)
The racial composition of Seminole County includes 59.16% White, 11.77% Black or African American, 5.8% other race, 5.42% Asian, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 284,854 | 59.16% |
| Two or more races | 84,756 | 17.6% |
| Black or African American | 56,660 | 11.77% |
| Other race | 27,924 | 5.8% |
| Asian | 26,087 | 5.42% |
| Native American | 934 | 0.19% |
| Native Hawaiian or Pacific Islander | 255 | 0.05% |
Seminole County 's average per capita income is $52,848. Household income levels show a median of $85,761. The poverty rate stands at 9.03%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $119,963 | $152,472 |
| Families | $104,387 | $133,709 |
| Households | $85,761 | $114,520 |
| Non Families | $54,754 | $72,097 |
Average Income
Median Household Income
Poverty Rate
