Counties in California

By the GeoMapGuide Editorial Team · Updated July 6, 2026 · 3 min read

California is divided into 58 counties, ranging from Los Angeles County — home to more people than 41 individual U.S. states — to Alpine County, the least populated county in the state. Every county below links to its own map page.

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All 58 Counties, A–Z

Counties are listed alphabetically. Only Alpine County currently links to a fully built map page — the rest use the same page template and will be filled in state by state.

CountyMap Link
Alameda CountyAlameda County Map, CA
Alpine CountyAlpine County Map, CA
Amador CountyAmador County Map, CA
Butte CountyButte County Map, CA
Calaveras CountyCalaveras County Map, CA
Colusa CountyColusa County Map, CA
Contra Costa CountyContra Costa County Map, CA
Del Norte CountyDel Norte County Map, CA
El Dorado CountyEl Dorado County Map, CA
Fresno CountyFresno County Map, CA
Glenn CountyGlenn County Map, CA
Humboldt CountyHumboldt County Map, CA
Imperial CountyImperial County Map, CA
Inyo CountyInyo County Map, CA
Kern CountyKern County Map, CA
Kings CountyKings County Map, CA
Lake CountyLake County Map, CA
Lassen CountyLassen County Map, CA
Los Angeles CountyLos Angeles County Map, CA
Madera CountyMadera County Map, CA
Marin CountyMarin County Map, CA
Mariposa CountyMariposa County Map, CA
Mendocino CountyMendocino County Map, CA
Merced CountyMerced County Map, CA
Modoc CountyModoc County Map, CA
Mono CountyMono County Map, CA
Monterey CountyMonterey County Map, CA
Napa CountyNapa County Map, CA
Nevada CountyNevada County Map, CA
Orange CountyOrange County Map, CA
Placer CountyPlacer County Map, CA
Plumas CountyPlumas County Map, CA
Riverside CountyRiverside County Map, CA
Sacramento CountySacramento County Map, CA
San Benito CountySan Benito County Map, CA
San Bernardino CountySan Bernardino County Map, CA
San Diego CountySan Diego County Map, CA
San Francisco CountySan Francisco County Map, CA
San Joaquin CountySan Joaquin County Map, CA
San Luis Obispo CountySan Luis Obispo County Map, CA
San Mateo CountySan Mateo County Map, CA
Santa Barbara CountySanta Barbara County Map, CA
Santa Clara CountySanta Clara County Map, CA
Santa Cruz CountySanta Cruz County Map, CA
Shasta CountyShasta County Map, CA
Sierra CountySierra County Map, CA
Siskiyou CountySiskiyou County Map, CA
Solano CountySolano County Map, CA
Sonoma CountySonoma County Map, CA
Stanislaus CountyStanislaus County Map, CA
Sutter CountySutter County Map, CA
Tehama CountyTehama County Map, CA
Trinity CountyTrinity County Map, CA
Tulare CountyTulare County Map, CA
Tuolumne CountyTuolumne County Map, CA
Ventura CountyVentura County Map, CA
Yolo CountyYolo County Map, CA
Yuba CountyYuba County Map, CA
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