Osceola County area

Population and density of Osceola County

The Census Bureau estimates that 481,718 people lived in Osceola County on July 1, 2025. That ranks #154 of 3,222 county equivalents nationally and #14 of 67 in Florida. Since the April 1, 2020 estimates base of 388,647, the population has grown by 93,071 (+23.9%), compared with +8.9% for Florida as a whole.

With 1,327.3 square miles of land, that is 363 people per square mile (140 per km²), placing Osceola County #445 nationally for density and #23 in Florida. The median county equivalent has 47 people per square mile; the Florida median is 209. Put another way, there are about 1.8 acres of land per resident.

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Osceola County

2 incorporated places lie at least partly in Osceola County. Together they are home to 160,551 people (33.3%); the other 321,167 (66.7%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Kissimmee city, with 85,591 residents in the county. By land, St. Cloud city is the largest at 34.9 mi². Among places with at least 1,000 residents in 2020, St. Cloud city grew fastest since then (+26.9%).

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Osceola County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Osceola County is an outlying county of the Orlando-Kissimmee-Sanford, FL Metropolitan Statistical Area. Its 4 county equivalents have 2,957,672 residents on 3,493.8 square miles of land; Osceola County accounts for 38% of the land and 16.3% of the residents. By combined land it ranks #82 of 393 metropolitan areas, and #20 by population. It belongs to the Orlando-Lakeland-Deltona, FL Combined Statistical Area.

ZIP codes

17 ZIP Code Tabulation Areas have land in Osceola County; 13 of them have most of their land inside the county, and the others mainly cover neighboring areas.

3384833896338973389834739347413474334744347463474734758347593476934771347723477334972

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Osceola County

Osceola County shares a land border with 5 county equivalents. It has more land than 4 of them. The largest neighbor is Polk County (1,798.8 mi²) and the smallest is Indian River County (502.6 mi²). Together with its neighbors, Osceola County forms a block of 6,316 mi² of land, of which it holds 21%.

How big is Osceola County compared with U.S. states?

Osceola County has more land than 1 of the 50 states. It is about 1.3 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.5 times as much land (1,948.6 mi²). Florida’s county land could hold about 40 areas the size of Osceola County.

Another way to picture it: the same land area would fill a square about 36.4 miles (58.6 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Osceola County?

Osceola County has more land than 2,774 of the other 3,221 county equivalents in the dataset.

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Osceola County at #446 nationally by total area, 2 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.

Its water share is 11.9%, compared with a national county-equivalent median of 1.2% — 10.7 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Osceola County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.