When was Osceola County founded?

Osceola County was founded in 1887, formed from Brevard County and Orange County, and named after Osceola.

What is the county seat of Osceola County?

The county seat of Osceola County is Kissimmee.

Is there an online parcel map for Osceola County?

Yes. A public source publishes a parcel map of 215,737 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.

Has Osceola County's boundary or name changed?

Osceola County was created in 1887 from Brevard County and Orange County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Okeechobee County and Polk County.

Is my lot in a flood zone?

We do not have flood maps for Osceola County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

County · code 12097

Osceola CountyFlorida

Osceola County is a county in Florida, founded in 1887, with its seat at Kissimmee.

Founded1887
County seatKissimmee
Named forOsceola
Land area1,328 sq mi + 178 sq mi water
Population388,656 2020 Census
Parcels mapped215,737 checked 14 October 2026

Open the free map Click any parcel in Osceola County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated 19 October 2026

Census outline · seat marked

History

Formed in 1887 from Brevard County and Orange County

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

Osceola County was created on July 11, 1887, from Brevard and Orange Counties. In 1917, Osceola County lost territory to the creation of Okeechobee County. In 1968, Osceola County exchanged land with Polk County.

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

1887
Osceola County created Osceola created from Brevard and Orange.
from Brevard from Orange
11 July 1887 · Fla. Laws 1887, 1st sess., ch. 3768/p. 148
1917
Lost territory Osceola lost to creation of Okeechobee.
to Okeechobee
7 August 1917 · Fla. Laws 1917, 16th sess., gen., ch. 7401, secs. 1, 20-21/pp. 285, 289-290; Van Landingham and Hetherington, 66
1968
Exchanged territory Osceola exchanged with Polk.
with Polk
1 January 1968 · Fla. Laws 1967, 41st sess., gen., ch. 67-592, secs. 1-3/pp. 1728-1730

Land and parcels

What the maps cover in Osceola

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

Parcels Good enough

Lot lines and tax-map numbers for 215,737 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 2 October 2026 · checked 14 October 2026
Address points Missing

No public address points layer found for Osceola County yet.
Buildings Reference

Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026

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

Osceola by the Census

Population

388,656 2020 Census count

Housing units

154,680 2020 Census count

Land area

1,328 square miles

Water area

178 square miles

People per sq mi

293 population ÷ land area

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

See your own lot on these maps

Open Osceola 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.

Open the free map no sign-in Pro early access

Questions

Common questions about Osceola County

When was Osceola County founded?: Osceola County was founded in 1887, formed from Brevard County and Orange County, and named after Osceola.
What is the county seat of Osceola County?: The county seat of Osceola County is Kissimmee.
Is there an online parcel map for Osceola County?: Yes. A public source publishes a parcel map of 215,737 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Osceola County's boundary or name changed?: Osceola County was created in 1887 from Brevard County and Orange County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Okeechobee County and Polk County.
Is my lot in a flood zone?: We do not have flood maps for Osceola County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby