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County · code 12117

Seminole CountyFlorida

Seminole County is a county in Florida with its seat in Sanford. It was formed on April 25, 1913, from Orange County and named after the Seminole people.

  • Founded1913
  • County seatSanford
  • Named forSeminole
  • Land area309 sq mi + 36 sq mi water
  • Population470,856 2020 Census
  • Parcels mapped181,058 checked 14 October 2026
Open the free map Click any parcel in Seminole County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

OrangeVolusiaLakeBrevard Sanford Census outline · seat marked

Where it is

Seminole on the map of Florida

Florida has 67 counties and county equivalents, each with its own records office. Shapes with a page are links.

History

Formed in 1913 from Orange County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Seminole County was created on April 25, 1913, from Orange County.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1913
    Seminole County created Seminole created from Orange. · Fla. Laws 1913, 14th sess., gen., ch. 6511, sec. 1/p. 365
  2. 1941
    Boundary clarified Part of the boundary between Seminole and Volusia was clarified (no change).
    with Volusiano change
    · Fla. Laws 1941, 28th sess., gen., ch. 20888/p. 2358
  3. 1961
    Boundary clarified Seminole boundaries were redefined, correcting mistake of 25 April 1913 (no change).
    no change
    · Fla. Laws 1961, 38th sess., gen., ch. 61-167, secs. 1-2/pp. 279-281

Land and parcels

What the maps cover in Seminole

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Seminole by the Census

Population
470,856 2020 Census count
Housing units
193,790 2020 Census count
Land area
309 square miles
Water area
36 square miles
People per sq mi
1,522 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Seminole County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

Open Seminole County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

Questions

Common questions about Seminole County

When was Seminole County founded?
Seminole County was founded in 1913, formed from Orange County, and named after Seminole.
What is the county seat of Seminole County?
The county seat of Seminole County is Sanford.
Is there an online parcel map for Seminole County?
Yes. A public source publishes a parcel map of 181,058 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Seminole County's boundary or name changed?
Seminole County was created in 1913 from Orange County. Its boundary has been clarified two times since, with no change on the ground.
Is my lot in a flood zone?
We do not have flood maps for Seminole County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door