About 91978 - Spring Valley, California
Located in California, the United States is home to the mid-sized community of Spring Valley, served by ZIP code 91978. It sits within Spring Valley County.
Census data puts the population of this ZIP code at 25,036 residents. That's close to the typical population for a ZIP code in California (~22,778).
Median household income is about $71,600 (below the California average).
Other ZIP code codes in California serve areas such as Wishon, San Diego, Castaic.