THE IMPERIAL COUNTY LAND BRIEF
Land in the
Imperial/Lower Coachella Valleys setting.
Imperial County has 4,175.5 square miles of land in California. 8 mapped landscape regions meet across Imperial County: Imperial/Lower Coachella Valleys, Central Sonoran/Colorado Desert Basins, Western Sonoran Basins, among others.
Hot desert basins are separated by low mountain ranges. Palo verde, cacti and other drought-adapted plants distinguish the Sonoran setting from the Mojave region farther north.
Regional context: Sonoran Basin and Range ↗ · Regional mapping across the county footprint
Where the landscape changes
Imperial County intersects 8 mapped regional units. The largest mapped shares are:
- Imperial/Lower Coachella Valleys32%
- Central Sonoran/Colorado Desert Basins25.8%
- Western Sonoran Basins14.6%
- Central Sonoran/Colorado Desert Mountains14.3%
- Sand Hills/Sand Dunes8%
Finding your parcel within Imperial County
The atlas lists 18 cities, towns, townships, and Census communities associated with Imperial County, including Salton City, El Centro, Ocotillo. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Imperial County by land and water
The Census records 305.1 square miles of water within Imperial County, or 6.8% of its total area. That share is close to Imperial County’s 6.8%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Imperial County has 516.2 times the land area of nearby Brawley city (8.09 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Riverside County, San Diego County within California. A tract near one of these lines should be matched to the county identifier on its own records.

