Collier County, Florida

County seat: East Naples · Population 417,131 (2025) · 1,997 sq mi

Collier County is the 19th most populous of Florida's 67 counties, with 417,131 people (2025 estimate). Its county seat is East Naples. It is part of the Southwest Florida region, one of the 10 Florida regional planning council regions. The map shows its 3 cities and towns and the 5 neighboring counties.

Map of Collier County, Florida with cities, towns and the county boundary
Collier County, Florida with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
Download PDF (Letter) 153 KBPNG image 89 KBFlorida county map

Collier County facts

County seat
East Naples
Population (2025 estimate)
417,131 +11% since 2020
Land area
1,997 sq mi 1st largest of 67
Water area
608 sq mi
Population density
209 per sq mi
Established
1923
Named after
Barron Collier American advertising pioneer and businessman
Largest city
Golden Gate 29,234
Median household income
$90,045
Cities and towns
3 plus 21 CDPs
ZIP codes
24
Time zone
Eastern
FIPS code
12021

Cities and towns in Collier County

Collier County has 3 incorporated cities, towns and villages. Populations count the people living inside Collier County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
NaplesCity20,114
Marco IslandCity16,421
EvergladesCity399

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Golden Gate29,234
Immokalee26,361
Lely Resort8,582
Ave Maria8,258
Pelican Bay6,159
Orangetree6,084
Naples Manor5,501
Naples Park5,122
Vineyards3,849
Lely3,804
Island Walk2,722
Verona Walk2,695
Pelican Marsh2,617
Berkshire Lakes2,064
Pine Ridge1,910
Winding Cypress1,160
Chokoloskee808
Heritage Bay802
Marco Shores-Hammock Bay794
Goodland104
Plantation Island43

ZIP codes in Collier County

24 ZIP codes reach into Collier County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Collier County, 2020–2025

Collier County grew by 41,368 people (+11%) between April 2020 and July 2025: 4,801 more deaths than births and a net gain of 46,709 people from migration.

Year (July 1)Population
2020377,327
2021387,411
2022401,486
2023411,435
2024416,722
2025417,131

Neighboring counties

Printable Collier County map

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Sources

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