Population Demographics for Contra Costa County, California in 2020, 2019



Other Counties and Cities in California


Population Demographics by Race

RacePopulation% of Total
Total Population1,049,025100
White614,51258
Hispanic or Latino255,56024
Asian151,46914
Some Other Race112,69110
Black or African American97,1619
Two or More Races62,2255
American Indian6,122Below 1%
Three or more races5,849Below 1%
Native Hawaiian Pacific Islander4,845Below 1%
Native Hawaiian648Below 1%

Population Demographics by Race and gender.

MaleFemaleTotal
Total Population511,526537,4991,049,025
White301,629312,883614,512
Hispanic or Latino128,889126,671255,560
Asian71,12180,348151,469
Some Other Race57,79654,895112,691
Black or African American45,05352,10897,161
Two or More Races30,60931,61662,225
American Indian3,0533,0696,122
Three or more races2,7963,0535,849
Native Hawaiian Pacific Islander2,2652,5804,845
Native Hawaiian299349648

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Demographic population totals

Total population in Contra Costa County

 
Total Population:1,049,025
Male Population:511,526
Female Population:537,499

Demographic median age by sex

Median age in Contra Costa County

 
Both sexes38
Male37
Female39

Demographic sex by age for the population in households

Population in households in Contra Costa County

 
Total Population:1,038,711
Male Population:506,195
Under 5 years:33,939
5 to 9 years:36,946
10 to 14 years:37,965
15 to 17 years:23,764
18 and 19 years:13,620
20 years:6,214
21 years:5,757
22 to 24 years:18,113
25 to 29 years:31,962
30 to 34 years:31,272
35 to 39 years:33,978
40 to 44 years:37,711
45 to 49 years:40,359
50 to 54 years:38,519
55 to 59 years:32,989
60 and 61 years:11,818
62 to 64 years:16,027
65 and 66 years:8,470
67 to 69 years:10,573
70 to 74 years:13,394
75 to 79 years:9,614
80 to 84 years:7,004
85 years and over:6,187
Female Population:532,516
Under 5 years:32,966
5 to 9 years:35,274
10 to 14 years:36,329
15 to 17 years:22,602
18 and 19 years:12,311
20 years:5,805
21 years:5,360
22 to 24 years:17,429
25 to 29 years:32,293
30 to 34 years:33,099
35 to 39 years:36,121
40 to 44 years:39,941
45 to 49 years:43,078
50 to 54 years:40,987
55 to 59 years:35,947
60 and 61 years:13,149
62 to 64 years:18,004
65 and 66 years:9,623
67 to 69 years:12,326
70 to 74 years:15,750
75 to 79 years:12,401
80 to 84 years:10,355
85 years and over:11,366

Demographic average population of home by age

Average household size in Contra Costa County

 
Total:2
Under 18 years:0
18 years and over:2

Demographic household type

Number of occupied homes in Contra Costa County

 
Total:375,364
Family led homes:265,280
Husband-wife family:199,021
Other family:66,259
Population of male led with no wife present:19,553
Population female led with no husband present:46,706
Population of Nonfamily homes:110,084
Population living alone:85,055
Population not living alone:25,029

Demographic population of homes with people under 18 years old by type

Total occupied homes in Contra Costa County with people under 18 years old:

 
Total:375,364
Population of homes with one or more people under 18 years:140,058
Population of family homes:138,944
Husband-wife family:99,268
Under 6 years only:22,193
Under 6 years and 6 to 17 years:22,468
6 to 17 years only:54,607
Other family:39,676
Male householder, no wife present:11,102
Under 6 years only:2,727
Under 6 years and 6 to 17 years:2,044
6 to 17 years only:6,331
Female led with no husband present:28,574
Under 6 years only:5,453
Under 6 years and 6 to 17 years:5,348
6 to 17 years only:17,773
Nonfamily households:1,114
Male led households:792
Under 6 years only:161
Under 6 years and 6 to 17 years:72
6 to 17 years only:559
Female led householder:322
Under 6 years only:69
Under 6 years and 6 to 17 years:17
6 to 17 years only:236
Households with no people under 18 years:235,306
Family households:126,336
Husband-wife family:99,753
Other family:26,583
Male led with no wife present:8,451
Female led with no husband present:18,132
Nonfamily households:108,970
Male led householder:47,603
Female led householder:61,367

Demographic type of home by age of owner-renter

Total number led homes in Contra Costa County, by type

 
Total Home Population:375,364
Population of Family homes:265,280
Population of 15 to 24 year olds:4,836
Population of 25 to 34 year olds:34,278
Population of 35 to 44 year olds:61,360
Population of 45 to 54 year olds:69,133
Population of 55 to 59 year olds:27,723
Population of 60 to 64 year olds:22,830
Population of 65 to 74 year olds:26,942
Population of 75 to 84 year olds:13,693
Population of 85 year olds and over:4,485
Population of Nonfamily Homes:110,084
Population of 15 to 24 year olds:4,579
Population of 25 to 34 year olds:14,754
Population of 35 to 44 year olds:12,597
Population of 45 to 54 year olds:20,015
Population of 55 to 59 year olds:11,378
Population of 60 to 64 year olds:11,545
Population of 65 to 74 year olds:15,160
Population of 75 to 84 year olds:11,937
Population of 85 year olds and over:8,119

Demographic population of homes with people 60 year olds and over

households in Contra Costa County containing people over 60

 
Total Population:375,364
Population of homes with one or more people 60 years and over:132,916
1-person household:41,809
2-or-more-person household:91,107
Family households:85,014
Nonfamily households:6,093
Population of homes with no people 60 years and over:242,448
1-person household:43,246
2-or-more-person household:199,202
Family homes:180,266
Nonfamily homes:18,936

Demographic population of multigenerational homes

homes in Contra Costa County with multiple generations.

 
Total Population:375,364
Home has three or more generations:19,835
Home does not have three or more generations:355,529

Demographic presence of unmarried partner of home owner-renter

Unmarried population in Contra Costa County under 18 years old in homes

 
Total Population:259,676
Total Population:259,676
Unmarried partner of home lead present:17,932
Unmarried partner of home lead present:17,932
In family homes:17,218
In family homes:17,218
Population of male led and male partner homes:642
Population of male led and male partner homes:642
Population of male led and female partner households:7,787
Population of male led and female partner households:7,787
Population of female led and female partner households:1,173
Population of female led and female partner households:1,173
Population of female led and male partner households:7,616
Population of female led and male partner households:7,616
In nonfamily homes:714
In nonfamily homes:714
Population of male led and male partner homes:28
Population of male led and male partner homes:28
Population of male led and female partner homes:575
Population of male led and female partner homes:575
Population of female led and female partner homes:26
Population of female led and female partner homes:26
Population of female led and male partner homes:85
Population of female led and male partner homes:85
No unmarried partner of home lead present:241,744
No unmarried partner of home lead present:241,744
In family homes:240,900
In family homes:240,900
Population of husband-wife family homes:189,715
Population of husband-wife family homes:189,715
Population of male lead with no wife present, family homes:10,529
Population of male lead with no wife present, family homes:10,529
Population of female lead with no husband present, family homes:40,656
Population of female lead with no husband present, family homes:40,656
In nonfamily homes:844
In nonfamily homes:844

Demographic population in families by age

Population in families living in Contra Costa County

 
Total Population:866,090
Total Population:866,090
Population Under 18 years:255,515
Population Under 18 years:255,515
Population 18 years and over:610,575
Population 18 years and over:610,575

Demographic tenure of people in homes

How long in Contra Costa County have lived in one place.

 
Total:375,364
Population of Owner occupied homes:251,904
Family home:190,371
Nonfamily homess:61,533
Male led home:24,971
Living alone:18,482
Not living alone:6,489
Female led home:36,562
Living alone:30,839
Not living alone:5,723
Population of Renter occupied homes:123,460
Family run homes:74,909
Husband-wife family:41,400
Other family:33,509
Male led with no wife present:9,322
Female led with no husband present:24,187
Nonfamily Homes:48,551
Male led homes:23,424
Male living alone:15,996
Male not living alone:7,428
Female led homes:25,127
Females living alone:19,738
Females not living alone:5,389