County · code 06061
Placer CountyCalifornia
Placer County is a county in California, with its seat in Auburn, formed in 1851.
- Founded1851
- County seatAuburn
- Named forplacer mining
- Land area1,407 sq mi + 95 sq mi water
- Population404,739 2020 Census
- Parcels mapped197,000 checked 16 October 2026
Where it is
Placer on the map of California
California has 58 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1851 from Sutter County and Yuba County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Placer County was created on April 25, 1851, from parts of Sutter and Yuba counties. The county was named after placer mining, the surface mining technique used in the area. Over the following decades, Placer exchanged and adjusted its borders with El Dorado and Sutter counties, with the most recent boundary change in 1913.
- 1851Placer County created Placer created from Sutter and Yuba. · Calif. Stats. 1851, 2d sess., ch. 14, sec. 17/p. 176
- 1863Lost territory Placer lost to El Dorado. · Calif. Stats. 1863, 14th sess., ch. 263/p. 349
- 1866Exchanged territory Placer exchanged with Sutter. · Calif. Stats. 1865, 16th sess., ch. 224/p. 223
- 1873Gained territory Placer gained small area from Sutter. · Political Code 1872, 1: sec. 3924, 3926/pp. 125-127
- 1889Boundary clarified Placer boundaries clarified (no change).no change· Calif. Stats. 1889, 28th sess., ch. 262/p. 402
- 1913Exchanged territory Placer exchanged with El Dorado. · Calif. Stats. 1913, 40th sess., chs. 315-316/pp. 603-605
Land and parcels
What the maps cover in Placer
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 197,000 parcels from Placer County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 10 September 2025 · checked 16 October 2026 -
Address points Missing
No public address points layer found for Placer 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
Placer 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
Placer 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 Placer County.
See your own lot on these maps
Open Placer 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 Placer County
- When was Placer County founded?
- Placer County was founded in 1851, formed from Sutter County and Yuba County, and named after placer mining.
- What is the county seat of Placer County?
- The county seat of Placer County is Auburn.
- Is there an online parcel map for Placer County?
- Yes. Placer County publishes a parcel map of 197,000 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Placer County's boundary or name changed?
- Placer County was created in 1851 from Sutter County and Yuba County. Since then the Atlas of Historical County Boundaries records 4 later changes, chiefly involving El Dorado County and Sutter County.
- Is my lot in a flood zone?
- We do not have flood maps for Placer County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby