Contra Costa County, California

Contra Costa County covers 717 sq mi of land and has about 1,165,012 residents. 53 zip codes lie mainly within it, spread across 30 cities and towns. Zip codes that only partly reach into the county are listed on each zip's own page.

Population

1,165,012

1,625/sq mi

Median household income

$127K

U.S. $81K

Median home value

$867K

U.S. $333K

Median rent

$2,375

U.S. $1,413

Median age

40.5

U.S. 38.9

Poverty rate

8.4%

U.S. 12.5%

Zip codes in Contra Costa County

53 total

Zip	City	Type	Population	IncomeMedian income	Home value
94505	Discovery Bay	Residential	14,970	$146,480	$830,500
94506	Danville	Residential	27,055	$250,000+	$1,956,800
94507	Alamo	Residential	14,586	$250,000+	$2,000,000+
94509	Antioch	Residential	70,090	$86,196	$584,100
94511	Bethel Island	Residential	1,864	$74,972	$682,700
94513	Brentwood	Residential	69,755	$142,223	$837,800
94514	Byron	Residential	1,953	$76,511	$735,600
94516	Canyon	Residential	214	$113,333	$784,700
94517	Clayton	Residential	12,316	$168,921	$1,032,100
94518	Concord	Residential	27,345	$112,094	$859,000
94519	Concord	Residential	19,058	$122,418	$783,700
94520	Concord	Residential	37,381	$82,479	$601,000
94521	Concord	Residential	41,909	$125,899	$853,200
94522	Concord · PO box	PO box / unique	—	—	—
94523	Pleasant Hill	Residential	34,592	$142,586	$1,076,600
94524	Concord · PO box	PO box / unique	—	—	—
94525	Crockett	Residential	3,372	$110,899	$776,100
94526	Danville	Residential	32,584	$225,097	$1,677,700
94527	Concord · PO box	PO box / unique	—	—	—
94528	Diablo	Residential	1,049	$207,500	$2,000,000+
94529	Concord · PO box	PO box / unique	—	—	—
94530	El Cerrito	Residential	26,401	$128,529	$1,114,100
94531	Antioch	Residential	46,387	$120,927	$701,600
94547	Hercules	Residential	26,302	$129,397	$769,400
94548	Knightsen	Residential	832	$189,653	$959,900
94549	Lafayette	Residential	28,420	$234,516	$2,000,000+
94553	Martinez	Residential	48,643	$124,130	$825,900
94556	Moraga	Residential	15,998	$215,720	$1,659,600
94561	Oakley	Residential	46,368	$134,678	$659,800
94563	Orinda	Residential	19,378	$250,000+	$1,866,500
94564	Pinole	Residential	18,761	$127,717	$718,600
94565	Pittsburg	Residential	100,488	$95,556	$583,800
94569	Port Costa	Residential	296	$38,929	$600,000
94570	Moraga · PO box	PO box / unique	—	—	—
94572	Rodeo	Residential	8,976	$91,484	$663,200
94575	Moraga	Residential	975	—	—
94582	San Ramon	Residential	47,424	$214,677	$1,635,700
94583	San Ramon	Residential	39,583	$184,898	$1,383,600
94595	Walnut Creek	Residential	16,988	$100,552	$860,600
94596	Walnut Creek	Residential	23,417	$135,635	$1,277,800
94597	Walnut Creek	Residential	23,129	$132,063	$1,026,800
94598	Walnut Creek	Residential	27,206	$186,225	$1,339,900
94708	Berkeley	Residential	11,947	$234,923	$1,593,000
94801	Richmond	Residential	33,591	$81,728	$609,000
94802	Richmond · PO box	PO box / unique	—	—	—
94803	El Sobrante	Residential	27,659	$118,447	$783,900
94804	Richmond	Residential	44,891	$91,037	$631,900
94805	Richmond	Residential	14,670	$111,152	$791,900
94806	San Pablo	Residential	62,546	$86,034	$607,800
94807	Richmond · PO box	PO box / unique	—	—	—
94808	Richmond · PO box	PO box / unique	—	—	—
94820	El Sobrante · PO box	PO box / unique	—	—	—
94850	Richmond · PO box	PO box / unique	—	—	—

Contra Costa County at a glance

Compared with the U.S.

Household income distribution

<$25k

$25–50k

10%

$50–75k

11%

$75–100k

10%

$100–150k

17%

$150–200k

13%

$200k+

29%

Highest education (adults 25+)

No diploma

10%

High school

18%

Some college

18%

Associate's

Bachelor's

28%

Graduate

18%

How people get to work

Drove alone

60%

Carpooled

10%

Transit

Walked

Bicycle

0.4%

Worked from home

21%

Other

At a glance

	Contra Costa	U.S.
Own their home	68%	65.2%
Bachelor's degree or higher	45.2%	35.7%
Work from home	21.3%	15.1%
Households with broadband	95.6%	91%
Without health insurance	4.6%	8.4%
Foreign-born	26.6%	14.1%
Veterans (of adults)	4.2%	6.2%
Unemployment	6.5%	5.2%
Average commute	35.3 min	26.4 min