County · code 04021
Pinal CountyArizona
Pinal County is in Arizona and has Florence as its county seat. The county was created on February 1, 1875, from parts of Maricopa and Pima counties and is named after Pinal Peak.
- Founded1875
- County seatFlorence
- Named forPinal Peak, Arizona
- Land area5,366 sq mi + 8.6 sq mi water
- Population425,264 2020 Census
- Parcels mapped286,952 checked 14 October 2026
Where it is
Pinal on the map of Arizona
Arizona has 15 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1875 from Maricopa County and Pima County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Pinal County was created by Arizona Territory on February 1, 1875, from Maricopa and Pima. On February 9, 1877, Pinal gained from Pima the area that had been separated from the main body of the county on the creation date. On February 8, 1881, Pinal lost land to the creation of Gila County.
- 1875Pinal County created Pinal created by Arizona Territory from Maricopa and Pima. · Ariz. Terr. Laws 1875, 8th assy./ pp. 19-20
- 1877Gained territory Pinal gained from Pima. Area gained was the part of Pima that had been separated from main body of the county on 1 February 1875. · Ariz. Terr. Laws 1877, 9th assy./ pp. 108-109
- 1881Lost territory Pinal lost to creation of Gila. · Ariz. Terr. Laws 1881, 11th assy./ pp. 14-17
Land and parcels
What the maps cover in Pinal
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 286,952 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 30 September 2026 · checked 14 October 2026 -
Address points Missing
No public address points layer found for Pinal 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
Pinal 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
Pinal County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Pinal County.
See your own lot on these maps
Open Pinal 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 Pinal County
- When was Pinal County founded?
- Pinal County was founded in 1875, formed from Maricopa County and Pima County, and named after Pinal Peak, Arizona.
- What is the county seat of Pinal County?
- The county seat of Pinal County is Florence.
- Is there an online parcel map for Pinal County?
- Yes. A public source publishes a parcel map of 286,952 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Pinal County's boundary or name changed?
- Pinal County was created in 1875 from Maricopa County and Pima County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Gila County and Pima County.
- Is my lot in a flood zone?
- We do not have flood maps for Pinal County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby