topographic

Unincorporated Contra Costa County

62,705
Total Households in 2020
In 2020, two-person households were the most common size in Unincorporated Contra Costa County, followed by one-person households. Married-couple households made up the largest share of household types. Additionally, 70% of households were owner-occupied.

Most Populous Demographics

CategoryDemographicTotalPercentage
CompositionMarried couple34,77455%
TenureOwner44,14070%
Size2 persons20,00532%

Composition

55%
Married couple
Married-couple households were the largest type in Unincorporated Contra Costa County for 2020. Non-family households outnumbered single-parent households by a notable amount. The vast majority of single-parent households were led by women, and more women than men lived alone.

Households by Type

09k18k27k36kMarried coupleSingle parentNon-family55%18%27%
09k18k27k36k55%18%27%Married coupleSingle parentNon-family
/View Households by Type dynamic table

Households by Marital Status

55%
Married couple
    34,774
    Married couple
    27,931
    Single
/View Households by Marital Status dynamic table

Householder Type by Sex

02k4k6k8k33%45%53%67%55%47%
Single parentLiving aloneNot living alone33%45%53%MaleMaleMale67%55%47%FemaleFemaleFemale
/View Householder Type by Sex dynamic table

Table: Households by Type

TypeHouseholds in Unincorporated Contra Costa County
TotalPercentage
Married couple34,77455%
Single parent11,06618%
Non-family16,86527%

Table: Households by Marital Status

Marital StatusHouseholds in Unincorporated Contra Costa County
TotalPercentage
Married couple34,77455%
Single27,93145%

Table: Householder Type by Sex

Type by SexHouseholds in Unincorporated Contra Costa County
TotalPercentage
Single parent - male3,68813%
Single parent - female7,37826%
Living alone - male5,88121%
Living alone - female7,16926%
Not living alone - male2,0387%
Not living alone - female1,7776%
* For all three charts above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), H14 Tenure By Household Type by Age of Householder. Figures for unincorporated areas were calculated by subtracting the sum of counts for incorporated places from totals for the county.

Tenure

70%
Owner
Owner-occupied households accounted for 70% of Unincorporated Contra Costa County’s 62,705 households in 2020. The remaining households were renter-occupied.

Households by Tenure

70%
Owner
    44,140
    Owner
    18,565
    Renter
/View Households by Tenure dynamic table

Table: Households by Tenure

TenureHouseholds in Unincorporated Contra Costa County
TotalPercentage
Owner44,14070%
Renter18,56530%
* For the chart above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), H14 Tenure By Household Type by Age of Householder. Figures for unincorporated areas were calculated by subtracting the sum of counts for incorporated places from totals for the county.

Size

32%
2 persons
Two-person households were the most common for Unincorporated Contra Costa County in 2020, while one-person households also represented a notable share. Three-person households were next in the rankings, followed by four-person households as the fourth most common.

Households by Size

05.5k11k16.5k22k1 person2 persons3 persons4 persons5 persons6 persons7+ persons21%32%17%16%8%3%2%
05.5k11k16.5k22k21%32%17%16%8%3%2%1 person2 persons3 persons4 persons5 persons6 persons7+ persons
/View Households by Size dynamic table

Table: Households by Size

SizeHouseholds in Unincorporated Contra Costa County
TotalPercentage
1 person13,05021%
2 persons20,00532%
3 persons10,74517%
4 persons10,34316%
5 persons4,9978%
6 persons2,0763%
7+ persons1,4892%
* For the chart above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), H9 Household Size. Figures for unincorporated areas were calculated by subtracting the sum of counts for incorporated places from totals for the county.