CountyAtlas

CountyAtlas California

California County Map with Cities — All 58 Counties

All 58 of California's counties, mapped from official U.S. Census boundaries with population, income, and unemployment for every one. Colour the map by any measure, tap a county for its data, or download a print-ready copy.

California CountiesFIPS 06
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
Albers Equal Area ConicDatum NAD83Census PEP · SAIPE · BLS LAUS · TIGER
CountyAtlasEdition
California’s 58 counties, projected equal-area. Hover or tap a county for its name; select it for full data.
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Tap any county for its population, income, and more.

California at a glance

  • Scale. California is divided into 58 counties across 155,860 sq mi of land — an average of 2,687 sq mi each. Census TIGER
  • People. Its counties are home to 38,965,193 residents — an average of 671,814 each, or 250 per square mile statewide. Census PEP 2023
  • Water. Another 7,833 sq mi is water — 4.8% of the state’s area, led by Santa Barbara County. Census TIGER

California’s 58 counties, by the numbers

Every county’s population, median household income, unemployment, density, and land area — sortable by any column, so you can find yours or rank by what matters to you. A few patterns run through the data:

  • Concentrated. Half of California’s 38,965,193 residents live in just 5 of 58 counties, and the five largest hold 53.3% of the total. Census PEP 2023
  • Income tracks poverty. The gap from richest to poorest runs 3.0×, and the 10 highest-income counties average 8.6% in poverty against 17.6% for the 10 lowest. Census SAIPE 2023
  • Mostly small. Half of California’s counties have fewer than 186,291 residents, and half report a median household income below $81,175 — a few metros lift the statewide totals well above both. Census PEP 2023 · SAIPE 2023
  • Lopsided density. Only 18 of 58 counties are denser than California’s statewide average of 250 people per square mile — the rest are more rural. Census PEP 2023 · TIGER
Alameda County1,622,188$119,2303.8%2,200/sq mi737 sq miOakland
Alpine County1,141$83,2659.8%2/sq mi738 sq miMarkleeville
Amador County41,811$80,7674.9%70/sq mi595 sq miJackson
Butte County207,172$63,0845.2%127/sq mi1,637 sq miOroville
Calaveras County46,565$77,0415.4%46/sq mi1,020 sq miSan Andreas
Colusa County22,037$66,67511.4%19/sq mi1,151 sq miColusa
Contra Costa County1,155,025$122,0004.0%1,611/sq mi717 sq miMartinez
Del Norte County26,589$70,2315.6%26/sq mi1,006 sq miCrescent City
El Dorado County192,215$107,0634.2%113/sq mi1,708 sq miPlacerville
Fresno County1,017,162$71,2717.4%171/sq mi5,959 sq miFresno
Glenn County28,129$64,1976.3%21/sq mi1,314 sq miWillows
Humboldt County133,985$61,3074.3%38/sq mi3,568 sq miEureka
Imperial County179,057$58,76816.9%43/sq mi4,175 sq miEl Centro
Inyo County18,527$71,6563.7%2/sq mi10,197 sq miIndependence
Kern County913,820$68,4368.3%112/sq mi8,135 sq miBakersfield
Kings County152,682$65,7688.0%110/sq mi1,391 sq miHanford
Lake County67,878$57,9456.0%54/sq mi1,255 sq miLakeport
Lassen County28,861$77,7435.6%6/sq mi4,541 sq miSusanville
Los Angeles County9,663,345$86,4995.2%2,380/sq mi4,060 sq miLos Angeles
Madera County162,858$66,0847.0%76/sq mi2,137 sq miMadera
Marin County254,407$139,1973.4%489/sq mi520 sq miSan Rafael
Mariposa County16,919$64,3525.1%12/sq mi1,449 sq miMariposa
Mendocino County89,108$65,8914.6%25/sq mi3,507 sq miUkiah
Merced County291,920$58,9628.8%151/sq mi1,938 sq miMerced
Modoc County8,500$51,9965.7%2/sq mi3,948 sq miAlturas
Mono County13,066$82,9733.5%4/sq mi3,049 sq miBridgeport
Monterey County430,723$86,8095.9%131/sq mi3,282 sq miSalinas
Napa County133,216$100,4693.6%177/sq mi752 sq miNapa
Nevada County102,037$87,1424.2%107/sq mi958 sq miNevada City
Orange County3,135,755$109,7683.5%3,953/sq mi793 sq miSanta Ana
Placer County423,561$110,0203.6%301/sq mi1,407 sq miAuburn
Plumas County19,131$64,1215.6%7/sq mi2,553 sq miQuincy
Riverside County2,492,442$90,2514.7%346/sq mi7,209 sq miRiverside
Sacramento County1,584,288$89,9844.2%1,641/sq mi965 sq miSacramento
San Benito County68,175$105,1125.7%49/sq mi1,389 sq miHollister
San Bernardino County2,195,611$84,5764.6%109/sq mi20,068 sq miSan Bernardino
San Diego County3,269,973$103,4763.9%777/sq mi4,211 sq miSan Diego
San Francisco County808,988$125,4563.3%17,331/sq mi47 sq miSan Francisco
San Joaquin County800,965$86,2115.6%575/sq mi1,392 sq miStockton
San Luis Obispo County281,639$89,8093.6%85/sq mi3,301 sq miSan Luis Obispo
San Mateo County726,353$151,0043.1%1,619/sq mi449 sq miRedwood City
Santa Barbara County441,257$90,1553.7%161/sq mi2,734 sq miSanta Barbara
Santa Clara County1,877,592$154,5733.4%1,454/sq mi1,291 sq miSan Jose
Santa Cruz County261,547$102,7235.1%588/sq mi445 sq miSanta Cruz
Shasta County180,366$71,9354.5%48/sq mi3,776 sq miRedding
Sierra County3,200$67,6754.2%3/sq mi953 sq miDownieville
Siskiyou County42,905$58,9756.5%7/sq mi6,279 sq miYreka
Solano County449,218$99,1174.4%547/sq mi822 sq miFairfield
Sonoma County481,812$100,1573.7%306/sq mi1,575 sq miSanta Rosa
Stanislaus County551,430$81,5826.4%369/sq mi1,496 sq miModesto
Sutter County97,948$71,9687.9%163/sq mi603 sq miYuba City
Tehama County64,896$58,3335.2%22/sq mi2,949 sq miRed Bluff
Trinity County15,670$52,0794.7%5/sq mi3,179 sq miWeaverville
Tulare County479,468$71,3689.5%99/sq mi4,824 sq miVisalia
Tuolumne County54,204$72,3294.8%24/sq mi2,221 sq miSonora
Ventura County829,590$106,5263.9%451/sq mi1,841 sq miSan Buenaventura (Ventura)
Yolo County220,544$91,1924.8%218/sq mi1,013 sq miWoodland
Yuba County85,722$71,4935.9%136/sq mi632 sq miMarysville

All 58 counties, sortable by any column — click a heading. A suppressed estimate (coefficient of variation ≥ 0.30) shows a marker, never a guess. County seats are from Wikidata (CC0), each validated to a Census place inside its county; a county with no validated seat is left blank. See the methodology.

Download & print this California map

Map of California's 58 counties — on official U.S. Census boundaries

Free, print-ready maps of California — all 58 counties on official U.S. Census boundaries, no watermark. Public domain (CC0).

  • Full map — counties + major cities: PNG · PDF
  • Blank outline — print & label it yourself: PNG · PDF
  • Counties only — clean labeled reference: PNG · PDF

California maps, coloured by the data

Map of California counties shaded by population — official U.S. Census data
Population Map by County · Census PEP 2023
Map of California counties shaded by median household income — official U.S. Census data
Median Household Income Map by County · Census SAIPE 2023
Map of California counties shaded by unemployment rate — U.S. Bureau of Labor Statistics
Unemployment Rate Map by County · BLS LAUS

Cities in California

California has 483 incorporated cities and towns. The largest is Los Angeles in Los Angeles County with 3,857,897 residents. Use the search on the map above to find any city and highlight the county it sits in.

Los AngelesLos Angeles County3,857,897
San DiegoSan Diego County1,385,061
San JoseSanta Clara County990,054
San FranciscoSan Francisco County836,321
FresnoFresno County543,615
SacramentoSacramento County524,802
Long BeachLos Angeles County458,491
OaklandAlameda County438,072
BakersfieldKern County408,366
AnaheimOrange County344,553
StocktonSan Joaquin County320,470
RiversideRiverside County316,241
Santa AnaOrange County311,639
IrvineOrange County308,160
Chula VistaSan Diego County275,030
Santa ClaritaLos Angeles County229,021
FremontAlameda County228,518
San BernardinoSan Bernardino County221,774
ModestoStanislaus County218,614
FontanaSan Bernardino County211,921
Moreno ValleyRiverside County210,378
OxnardVentura County201,014
Huntington BeachOrange County196,010
GlendaleLos Angeles County192,270
OntarioSan Bernardino County178,347
Elk GroveSacramento County177,221
Santa RosaSonoma County177,216
Rancho CucamongaSan Bernardino County174,693
OceansideSan Diego County172,542
Garden GroveOrange County170,603
LancasterLos Angeles County170,013
PalmdaleLos Angeles County165,487
SalinasMonterey County161,993
HaywardAlameda County159,201
CoronaRiverside County158,839
SunnyvaleSanta Clara County153,455
RosevillePlacer County152,438
EscondidoSan Diego County149,913
PomonaLos Angeles County148,391
TorranceLos Angeles County143,499
VisaliaTulare County142,649
FullertonOrange County141,278
OrangeOrange County138,723
PasadenaLos Angeles County136,462
VictorvilleSan Bernardino County135,983
Santa ClaraSanta Clara County129,239
Simi ValleyVentura County125,769
Thousand OaksVentura County125,676
VallejoSolano County124,637
ConcordContra Costa County124,260

Showing the 50 most populous — and 433 more. Search the map above for any California city or village.

A city can span more than one county; each is listed in its primary county — the one its center falls in.

Which California county is the richest, largest, most crowded? The answers

  • California’s highest median household income is in Santa Clara County ($154,573); the lowest is in Modoc County ($51,996). Census SAIPE 2023
  • California’s most populous county is Los Angeles County (9,663,345); the least populous is Alpine County (1,141) — a 8,469× spread. Census PEP 2023
  • California’s largest county by land area is San Bernardino County (20,068 sq mi); the smallest is San Francisco County (47 sq mi). Census TIGER
  • California’s highest population density is in San Francisco County (17,331/sq mi); the lowest is in Alpine County (2/sq mi). Census PEP 2023 · TIGER
  • California’s highest poverty rate is in Trinity County (20.8%); the lowest is in Placer County (6.5%). Census SAIPE 2023
  • In California, unemployment is highest in Imperial County (16.9%) and lowest in San Mateo County (3.1%), for May 2026. BLS LAUS
  • California’s highest median age is in Sierra County (56.0); the lowest is in Merced County (31.8). Census ACS 2019–2023
  • California’s highest share of bachelor’s degrees is in Marin County (60.5% of adults); the lowest is in Lassen County (13.2%). Census ACS 2019–2023

Every figure is a current official estimate from the source named — not a crowd-sourced or copied value. Suppressed estimates (coefficient of variation ≥ 0.30) are omitted, never guessed. See the full methodology.

California counties: common questions

How many counties are in California?

California has 58 counties covering 155,860 sq mi and about 39.0M residents. Every one is on the map above and in the table below.

What is the largest county in California?

It depends on the measure. By land area it’s San Bernardino County (20,068 sq mi); by population it’s Los Angeles County (9,663,345 residents).

What county is Los Angeles in?

Los Angeles (population 3,857,897) is in Los Angeles County. Use the search on the map to find any California city’s county.

What is the richest county in California?

By median household income, Santa Clara County is the richest at $154,573; the poorest is Modoc County at $51,996 (Census SAIPE 2023).

What is the most populous county in California?

Los Angeles County, with 9,663,345 residents — about 24.8% of California’s people, and 8,469× the least populous, Alpine County (1,141).

Sources & vintages

  • Population — PEP Vintage 2023 (July 1, 2023) — pep/charv
  • Median household income & poverty — SAIPE 2023
  • Unemployment — BLS LAUS May 2026 (preliminary)
  • Geometry & boundaries — Census TIGERweb
  • Cities & city population — Census TIGERweb Incorporated Places + ACS 5-year 2019–2023

Data current through .