Seminole County, Florida
County seat: Sanford · Population 491,884 (2025) · 309 sq mi
Seminole County is the 13th most populous of Florida's 67 counties, with 491,884 people (2025 estimate). Its county seat is Sanford. It is part of the East Central Florida region, one of the 10 Florida regional planning council regions. The map shows its 7 cities and towns and the 4 neighboring counties.
Seminole County facts
- County seat
- Sanford
- Population (2025 estimate)
- 491,884 +4.5% since 2020
- Land area
- 309 sq mi 64th largest of 67
- Water area
- 36 sq mi
- Population density
- 1,590 per sq mi
- Established
- 1913
- Named after
- Seminole Native American people originally from Florida
- Largest city
- Sanford 67,483
- Median household income
- $85,761
- Cities and towns
- 7 plus 9 CDPs
- ZIP codes
- 17
- Time zone
- Eastern
- FIPS code
- 12117
Cities and towns in Seminole County
Seminole County has 7 incorporated cities, towns and villages. Populations count the people living inside Seminole County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Sanford (county seat) | City | 67,483 | |
| Altamonte Springs | City | 48,000 | |
| Oviedo | City | 41,317 | |
| Winter Springs | City | 39,585 | |
| Casselberry | City | 31,872 | |
| Longwood | City | 16,892 | |
| Lake Mary | City | 16,789 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Wekiwa Springs | 23,915 | |
| Forest City | 15,312 | |
| Fern Park | 7,981 | |
| Heathrow | 6,769 | |
| Goldenrod | 5,856 | Orange County |
| Geneva | 3,441 | |
| Chuluota | 2,187 | |
| Midway | 1,407 | |
| Black Hammock | 1,290 |
ZIP codes in Seminole County
17 ZIP codes reach into Seminole County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 32701
- 32703 also Orange County
- 32707
- 32708
- 32714
- 32730
- 32732
- 32746
- 32750
- 32751 also Orange County
- 32765
- 32766
- 32771
- 32773
- 32779
- 32792 also Orange County
- 32810 also Orange County
Population of Seminole County, 2020–2025
Seminole County grew by 21,028 people (+4.5%) between April 2020 and July 2025: 2,381 more births than deaths and a net gain of 18,218 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 471,471 |
| 2021 | 471,040 |
| 2022 | 480,635 |
| 2023 | 487,504 |
| 2024 | 489,664 |
| 2025 | 491,884 |
Neighboring counties
- Volusia County north · 606,573 people
- Orange County southwest · 1,528,002 people
- Lake County west · 456,068 people
- Brevard County southeast · 663,982 people
Printable Seminole County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (141 KB)
- PNG (2400 px) (83 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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