Imperial County was established in 1907 from parts of San Diego County. It is named for the Imperial Valley by the Imperial Land Company. In1540 Imperial County was explored by Hernando de Alarcon,  who discovered the Colorado River.

Originally part of San Diego County, the Imperial Valley was settled by farmers from the Colorado River. They redirected canals to irrigate the desert valley floor, and when Imperial County was incorporated into California in 1907, most of the valley had been successfully irrigated. Seeley is one of the oldest towns in Imperial County, and was originally called Silsbee. Imperial County was the last of California's counties to be established.

For more information about Imperial County History, please click here


This Imperial County website page is for History, Facts, Archives, Records, Museums, Exhibits, Documents, Genealogy, Libraries, Historians, Research, Historic Preservation, Ancestry and Statistics in El Centro, Calexico, Brawley, Imperial, Calipatria, Holtville, Heber, Seeley, Niland, Salton City, Plaster City, Bombay Beach, Bonds Corner, Westmorland, Ogilby, Desert Shores, Ocotillo, Glamis, Bard and Palo Verde.