California
Postal abbreviation CA. 2,593 ZIP codes across 58 counties.
| Population | 39,287,377 |
|---|---|
| Postal abbreviation | CA |
| ZIP codes | 2,593 ZIP codes → |
| Area codes | 209213279310323341350357369408415424442510530559562619626628650657661669707714738747760805818820831837840858909916925949951 |
| Time zone | Pacific |
| Counties | 58 |
Largest cities by population
Los Angeles · 3,857,263San Diego · 1,389,526San Jose · 990,138San Francisco · 830,235Fresno · 545,970Sacramento · 528,706Long Beach · 455,548Oakland · 439,418Bakersfield · 411,986Anaheim · 344,521Stockton · 322,326Riverside · 319,069Santa Ana · 312,534Irvine · 311,690Chula Vista · 276,375Santa Clarita · 230,221Fremont · 228,295San Bernardino · 222,724Modesto · 219,215Fontana · 214,169Moreno Valley · 211,666Oxnard · 200,928Huntington Beach · 195,240Glendale · 190,748Ontario · 180,547Elk Grove · 179,155Santa Rosa · 177,090Rancho Cucamonga · 175,411Oceanside · 172,242Garden Grove · 170,964
Largest counties by population
Los Angeles County · 9,808,667San Diego County · 3,288,774Orange County · 3,165,820Riverside County · 2,478,600San Bernardino County · 2,197,104Santa Clara County · 1,902,047Alameda County · 1,649,473Sacramento County · 1,594,006Contra Costa County · 1,165,012Fresno County · 1,016,725
Counties in California
Alameda CountyAlpine CountyAmador CountyButte CountyCalaveras CountyColusa CountyContra Costa CountyDel Norte CountyEl Dorado CountyFresno CountyGlenn CountyHumboldt CountyImperial CountyInyo CountyKern CountyKings CountyLake CountyLassen CountyLos Angeles CountyMadera CountyMarin CountyMariposa CountyMendocino CountyMerced CountyModoc CountyMono CountyMonterey CountyNapa CountyNevada CountyOrange CountyPlacer CountyPlumas CountyRiverside CountySacramento CountySan Benito CountySan Bernardino CountySan Diego CountySan Francisco CountySan Joaquin CountySan Luis Obispo CountySan Mateo CountySanta Barbara CountySanta Clara CountySanta Cruz CountyShasta CountySierra CountySiskiyou CountySolano CountySonoma CountyStanislaus CountySutter CountyTehama CountyTrinity CountyTulare CountyTuolumne CountyVentura CountyYolo CountyYuba County
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.