Seminole County Map, Florida
Explore the definitive interactive map and reference guide to Seminole County, Florida. With a population of 470,856 living across 308 square miles of land, Seminole County is one of 10 counties in the Central Florida region. The county seat is Sanford, and the county carries the FIPS identifier 12117 in U.S. Census and USGS datasets.
A prosperous, fast-growing county on Orlando's northern edge, Seminole is defined by the Wekiva River, an unusually well-preserved chain of parks, and a heavy technology-services workforce.
Seminole County at a glance
A concise reference summary of Seminole County's key statistics — useful for research, real estate, relocation, travel planning, GIS workflows, journalism, and civics education.
- Official name
- Seminole County
- County seat
- Sanford
- FIPS code
- 12117
- Region
- Central Florida
- Established
- 1913
- Named for
- The Seminole people.
- Land area
- 308 sq mi
- Water area
- 36 sq mi
- Total area
- 344 sq mi
- Population (2020)
- 470,856
- Population density
- 1529 / sq mi
- Time zone
- Eastern Time
Where is Seminole County, Florida?
Seminole County is located in the Central Florida region of Florida, one of 67 counties that make up the state. Its county seat, Sanford, is the administrative hub — home to the courthouse, county commission chambers, tax collector, property appraiser, supervisor of elections, and clerk of the circuit court.
The county spans a total of 344 square miles — 308 of land and 36 of water — and operates on Eastern Time. Federal agencies including the U.S. Census Bureau, USGS, and FEMA reference the county by its FIPS code, 12117, in datasets, boundary files, and hazard mapping.
Seminole County shares borders with 3 neighboring counties: Volusia County, Orange County, Lake County. Use the interactive map above to explore where those boundaries meet or jump directly to any neighboring county page for a side-by-side comparison.
Seminole County geography & landscape
The St. Johns River, Lake Monroe, Lake Jesup, and the Wekiva River basin — a designated Wild and Scenic River protected by parks and preserves.
The county's overall footprint — 308 square miles of land plus 36 square miles of water — places it among the more compact of Florida's 67 counties by area. Elevation across most of Florida is modest, and land-use, drainage basins, and habitat corridors defined by state and federal agencies (Florida Department of Environmental Protection, U.S. Fish & Wildlife Service, and the Water Management Districts) shape how growth and conservation coexist here.
Economy & industry in Seminole County
Technology and professional services (Lake Mary is a major regional business center), health care (AdventHealth), aviation (Orlando Sanford), and tourism.
Employment, tax base, and land use in Seminole County reflect its location in Central Florida and its position as one of Florida's most populous counties. Economic development authorities, chambers of commerce, and the Florida Department of Economic Opportunity publish updated employer and workforce data for the county on their portals.
History of Seminole County
Split from Orange County in 1913. Sanford was a 19th-century steamboat and citrus center on the St. Johns River.
Established in 1913, Seminole County is one of Florida's modern counties. Its boundaries, seat, and government have evolved through territorial, statehood, Reconstruction, and modern eras — a lineage documented by the Florida Historical Society, the State Archives of Florida, and the Seminole County Historical Commission or equivalent local body.
Tourism & things to do in Seminole County
Wekiwa Springs State Park, Central Florida Zoo, Blue Spring State Park (adjacent Volusia), and Sanford's historic downtown.
Whether you're planning a weekend trip, a longer stay, or a day drive from a neighboring county, Seminole County offers a mix of natural, cultural, and community attractions tied to its Central Florida identity. For the latest hours, admission fees, and seasonal events, check the county's official tourism development council and the Florida State Parks portal (floridastateparks.org).
Cities, towns & communities in Seminole County
Seminole County contains the following incorporated cities, towns, and notable census-designated places. Each municipality provides local services, zoning, and police protection within the broader county jurisdiction. Use the ZIP code lookupto jump between Florida counties instantly.
Getting to Seminole County
Access routes and regional transportation infrastructure serving Seminole County.
- I-4
- SR-417
- SR-434
- SR-436
- US-17-92
- Orlando Sanford International (SFB)
- Orlando Executive nearby
Seminole County GIS, parcel & boundary data
Seminole County's authoritative boundary lines, parcel data, zoning layers, flood zones, and land-use inventories are maintained by county government and state agencies. Use the official links in the sidebar for parcel lookups, appraiser searches, and record requests. For statewide GIS, the Florida Geographic Data Library (FGDL) and the Florida Department of Environmental Protection publish downloadable layers keyed to FIPS 12117.
You can download this county's outline as SVG, PNG, or a printable PDF factsheet using the export tools in the sidebar — perfect for reports, presentations, classroom handouts, or planning documents.
Frequently asked about Seminole County
Population figures reflect the U.S. Census Bureau 2020 decennial count with ACS 5-year updates where noted. Land and water areas come from the U.S. Census Bureau TIGER/Line boundary files. Highway designations use Florida Department of Transportation route inventories. County establishment dates and namesakes are drawn from the Florida Association of Counties and State Archives of Florida. See our methodology page.
Nearby Florida counties
Counties that share a border with Seminole County. Click any to view its map, seat, cities, and full guide.