Collier County, Florida

Collier County
The Collier County courthouse in April 2010
Location within the U.S. state of Florida
Florida's location within the U.S.
Coordinates: 26°05′N 81°24′W / 26.08°N 81.4°W / 26.08; -81.4
Country United States
State Florida
FoundedMay 8, 1923
Named afterBarron Collier
SeatEast Naples
Largest cityNaples
Area
  Total
2,305 sq mi (5,970 km2)
  Land1,998 sq mi (5,170 km2)
  Water307 sq mi (800 km2)  13.3%
Population
 (2020)
  Total
375,752
  Estimate 
(2023)
404,310
  Density160/sq mi (63/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional districts18th, 19th, 26th
Websitewww.colliergov.net

Collier County is a county in the U.S. state of Florida. As of the 2020 census, its population was 375,752; an increase of 16.9% since the 2010 United States Census. Its county seat is East Naples, where the county offices were moved from Everglades City in 1962. Collier County comprises the NaplesMarco Island Metropolitan Statistical Area (MSA), which, along with the Cape Coral-Fort Myers (Lee County) MSA and the Clewiston (Hendry County, Glades County) Micropolitan Statistical Area (μSA), is included in the Cape Coral-Fort Myers-Naples Combined Statistical Area (CSA).