County · code 12021
Collier CountyFlorida
Collier County is a county in Florida, with its county seat in East Naples. It was established on July 7, 1923, from Lee County and named after Barron Collier.
- Founded1923
- County seatEast Naples
- Named forBarron Collier
- Land area1,997 sq mi + 608 sq mi water
- Population375,752 2020 Census
- Parcels mapped297,524 checked 15 October 2026
Where it is
Collier 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 1923 from Lee. County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Collier County was created from Lee County on July 7, 1923. The county was named after Barron Collier.
- 1923Collier County created Collier created from Lee. · Fla. Laws 1923, 19th sess., gen., ch. 9362, secs. 1, 26/pp. 468, 476
Land and parcels
What the maps cover in Collier
Who publishes each layer, how good it is, and when we last checked.
-
Parcels Good enough
Lot lines and tax-map numbers for 297,524 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 8 October 2026 · checked 15 October 2026 -
Address points Missing
No public address points layer found for Collier 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
Collier by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
Inside a city or town, permits usually come from that city rather than the county.
County government
- County government
The official website of Collier County.
See your own lot on these maps
Open Collier 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 Collier County
- When was Collier County founded?
- Collier County was founded in 1923, formed from Lee. County, and named after Barron Collier.
- What is the county seat of Collier County?
- The county seat of Collier County is East Naples.
- Is there an online parcel map for Collier County?
- Yes. A public source publishes a parcel map of 297,524 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Collier County's boundary or name changed?
- Collier County was created in 1923 from Lee. County. The Atlas of Historical County Boundaries records no boundary change since.
- Who issues building permits in Collier County?
- The county's page on building permits: Building Permits & Construction. Inside a city or town, ask that city first.
- Is my lot in a flood zone?
- We do not have flood maps for Collier County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby