County · code 06025
Imperial CountyCalifornia
Imperial County is a county in California, established in 1907 and named after Imperial Valley. The county seat is El Centro.
- Founded1907
- County seatEl Centro
- Named forImperial Valley, Southern California
- Land area4,176 sq mi + 305 sq mi water
- Population179,702 2020 Census
- Parcels mapped88,490 checked 15 October 2026
Where it is
Imperial 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 1907 from San Diego County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Imperial County was created on August 12, 1907, from San Diego County.
- 1907
- 1967Boundary clarified Imperial boundaries redefined to more precisely define the boundary between Imperial and the State of Arizona (no change).no change· Calif. Stats. 1967, reg. sess., ch. 339/pp. 1536-1537; Coy, 339
Land and parcels
What the maps cover in Imperial
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 88,490 parcels from Imperial County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 22 April 2026 · checked 15 October 2026 -
Address points Missing
No public address points layer found for Imperial 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
Imperial 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
County government
- County government
The official website of Imperial County.
See your own lot on these maps
Open Imperial 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 Imperial County
- When was Imperial County founded?
- Imperial County was founded in 1907, formed from San Diego County, and named after Imperial Valley, Southern California.
- What is the county seat of Imperial County?
- The county seat of Imperial County is El Centro.
- Is there an online parcel map for Imperial County?
- Yes. Imperial County publishes a parcel map of 88,490 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Imperial County's boundary or name changed?
- Imperial County was created in 1907 from San Diego County. Its boundary has been clarified one time since, with no change on the ground.
- Is my lot in a flood zone?
- We do not have flood maps for Imperial County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby