Contra Costa

County in California

County

The population development of Contra Costa.

Name	Status	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Contra Costa	County	803,732	948,816	1,049,025	1,165,983	1,172,607	→
California	State	29,760,021	33,871,648	37,253,956	39,555,674	39,431,263

Contents: Incorporated Places

The population development of the incorporated places in Contra Costa.

The Details icon links to further information about a selected place including its population structure (gender, age groups, age distribution, urbanization, »race«, ethnicity).

Name	Status	County	Population Census 1990-04-01	Population Census 2000-04-01	Population Census 2010-04-01	Population Census 2020-04-01	Population Estimate 2024-07-01
Antioch	City	Contra Costa	62,125	90,924	102,745	115,304	118,453	→
Brentwood	City	Contra Costa	8,968	24,076	51,627	64,291	66,286	→
Clayton	City	Contra Costa	7,339	10,797	10,918	11,073	10,933	→
Concord	City	Contra Costa	111,230	122,001	122,162	125,410	124,016	→
Danville	Town	Contra Costa	31,331	41,765	41,871	43,575	43,410	→
El Cerrito	City	Contra Costa	22,875	23,069	23,598	25,957	26,409	→
Hercules	City	Contra Costa	16,832	19,430	24,089	26,019	26,499	→
Lafayette	City	Contra Costa	23,095	23,988	23,789	25,392	25,371	→
Martinez	City	Contra Costa	33,556	35,975	36,037	37,268	37,006	→
Moraga	Town	Contra Costa	16,054	16,333	16,006	16,883	16,698	→
Oakley	City	Contra Costa	17,146	25,726	35,421	43,354	47,158	→
Orinda	City	Contra Costa	16,766	17,425	17,759	19,502	19,573	→
Pinole	City	Contra Costa	17,150	19,310	18,330	19,022	18,663	→
Pittsburg	City	Contra Costa	47,741	56,795	63,266	76,407	77,131	→
Pleasant Hill	City	Contra Costa	31,689	32,432	33,075	34,611	34,169	→
Richmond	City	Contra Costa	85,976	99,250	103,337	116,303	115,353	→
San Pablo	City	Contra Costa	25,051	30,106	29,505	32,125	31,562	→
San Ramon	City	Contra Costa	35,277	44,706	71,404	86,336	85,924	→
Walnut Creek	City	Contra Costa	61,098	64,449	64,145	70,131	70,817	→

Source: U.S. Census Bureau.

Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.

Further information about the population structure:

Gender (C 2020)
Males	568,066
Females	597,861

Age Groups (C 2020)
0-17 years	263,255
18-64 years	709,873
65+ years	192,799

Age Distribution (C 2020)
80+ years	44,894
70-79 years	86,411
60-69 years	134,834
50-59 years	159,764
40-49 years	158,035
30-39 years	156,853
20-29 years	132,676
10-19 years	158,515
0-9 years	133,945

Urbanization (C 2020)
Rural	11,661
Urban	1,154,266

»Race« (C 2020)
White	501,697
Black/African American	101,485
Indigenous	12,043
Asian	217,823
Pacific Islander	6,250
Some other	173,154
2 or more	153,475

Ethnicity (C 2020)
Hispanic or Latino	314,900
Other	851,027