County · code 12103
Pinellas CountyFlorida
Pinellas County is a county in Florida with its county seat in Clearwater. It was created from Hillsborough County on November 14, 1911.
- Founded1911
- County seatClearwater
- Land area274 sq mi + 589 sq mi water
- Population959,107 2020 Census
- Parcels mapped437,545 checked 15 October 2026
Where it is
Pinellas 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 1911 from Hillsborough County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Pinellas County was created from Hillsborough County on November 14, 1911. In 1939, Pinellas gained a small area known as Mullet Key from Hillsborough County.
- 1911Pinellas County created Pinellas created from Hillsborough. · Fla. Laws 1911, 13th sess., ch. 6247, secs. 1, 20-21/pp. 219, 223; Grismer, St. Petersburg, 35; HRS Fla., Pinellas, 9
- 1939Gained territory Pinellas gained small area (Mullet Key) from Hillsborough. · Fla. Laws 1939, 27th sess., gen., ch. 19058/p. 116
- 1967Boundary clarified Pinellas boundary in the Gulf of Mexico was clarified (no change).no change· Fla. Laws 1967, 41st sess., gen., ch. 67-601/p. 1789
Land and parcels
What the maps cover in Pinellas
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 437,545 parcels from Pinellas County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 15 October 2026 -
Address points Missing
No public address points layer found for Pinellas County yet.
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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
Pinellas 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.
Zoning and code
GIS and maps
County government
- County government
The official website of Pinellas County.
See your own lot on these maps
Open Pinellas 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 Pinellas County
- When was Pinellas County founded?
- Pinellas County was founded in 1911, formed from Hillsborough County.
- What is the county seat of Pinellas County?
- The county seat of Pinellas County is Clearwater.
- Is there an online parcel map for Pinellas County?
- Yes. Pinellas County publishes a parcel map of 437,545 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Pinellas County's boundary or name changed?
- Pinellas County was created in 1911 from Hillsborough County. Since then the Atlas of Historical County Boundaries records 1 later change, most of them small boundary adjustments, chiefly involving Hillsborough County.
- Who issues building permits in Pinellas County?
- The county's page on building permits: Habitat Permit & Environmental Compliance. Inside a city or town, ask that city first.
- Is my lot in a flood zone?
- We do not have flood maps for Pinellas County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby