The graph below ranks each California County by total residents according to the 2006 census estimates.

California total population by county

CountyTotal Population
Los AngelesLos Angeles County total population - 9,948,0819,948,081  
OrangeOrange County total population - 3,002,0483,002,048
San DiegoSan Diego County total population - 2,941,4542,941,454
RiversideRiverside County total population - 2,026,8032,026,803
San BernardinoSan Bernardino County total population - 1,999,3321,999,332
Santa ClaraSanta Clara County total population - 1,731,2811,731,281
AlamedaAlameda County total population - 1,457,4261,457,426
SacramentoSacramento County total population - 1,374,7241,374,724
Contra CostaContra Costa County total population - 1,024,3191,024,319
FresnoFresno County total population - 891,756891,756
VenturaVentura County total population - 799,720799,720
KernKern County total population - 780,117780,117
San FranciscoSan Francisco County total population - 744,041744,041
San MateoSan Mateo County total population - 705,499705,499
San JoaquinSan Joaquin County total population - 673,170673,170
StanislausStanislaus County total population - 512,138512,138
SonomaSonoma County total population - 466,891466,891
TulareTulare County total population - 419,909419,909
SolanoSolano County total population - 411,680411,680
MontereyMonterey County total population - 410,206410,206
Santa BarbaraSanta Barbara County total population - 400,335400,335
PlacerPlacer County total population - 326,242326,242
San Luis ObispoSan Luis Obispo County total population - 257,005257,005
Santa CruzSanta Cruz County total population - 249,705249,705
MarinMarin County total population - 248,742248,742
MercedMerced County total population - 245,658245,658
ButteButte County total population - 215,881215,881
YoloYolo County total population - 188,085188,085
ShastaShasta County total population - 179,951179,951
El DoradoEl Dorado County total population - 178,066178,066
ImperialImperial County total population - 160,301160,301
MaderaMadera County total population - 146,345146,345
KingsKings County total population - 146,153146,153
NapaNapa County total population - 133,522133,522
HumboldtHumboldt County total population - 128,330128,330
NevadaNevada County total population - 98,76498,764
SutterSutter County total population - 91,41091,410
MendocinoMendocino County total population - 88,10988,109
YubaYuba County total population - 70,39670,396
LakeLake County total population - 65,93365,933
TehamaTehama County total population - 61,68661,686
TuolumneTuolumne County total population - 56,85556,855
San BenitoSan Benito County total population - 55,84255,842
CalaverasCalaveras County total population - 47,72247,722
SiskiyouSiskiyou County total population - 45,09145,091
AmadorAmador County total population - 38,94138,941
LassenLassen County total population - 34,71534,715
Del NorteDel Norte County total population - 28,89328,893
GlennGlenn County total population - 28,06128,061
ColusaColusa County total population - 21,27221,272
PlumasPlumas County total population - 21,26321,263
MariposaMariposa County total population - 18,40118,401
InyoInyo County total population - 17,98017,980
TrinityTrinity County total population - 14,31314,313
MonoMono County total population - 12,75412,754
ModocModoc County total population - 9,5979,597
SierraSierra County total population - 3,4553,455
AlpineAlpine County total population - 1,1801,180

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California population comparison tables
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California Public Records

California Court Records