Households
Households
topographic
Households

Contra Costa County

407,029
Total Households in 2020
In 2020, two-person households were the most common size in Contra Costa County, followed by one-person households. Married-couple households made up the largest share of household types. Additionally, 66% of households were owner-occupied.

Most Populous Demographics

CategoryDemographicTotalPercentage
CompositionMarried couple217,99754%
TenureOwner267,04166%
Size2 persons122,49630%

Composition

54%
Married couple
Married-couple households were the largest type in 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

055k110k165k220kMarried coupleSingle parentNon-family54%19%28%
055k110k165k220k54%19%28%Married coupleSingle parentNon-family
/View Households by Type dynamic table

Households by Marital Status

54%Married couple
    217,997
    Married couple
    189,032
    Single
/View Households by Marital Status dynamic table

Householder Type by Sex

015k30k45k60k32%40%52%69%60%48%
Single parentLiving aloneNot living alone32%40%52%MaleMaleMale69%60%48%FemaleFemaleFemale
/View Householder Type by Sex dynamic table

Table: Households by Type

TypeHouseholds in Contra Costa County
TotalPercentage
Married couple217,99754%
Single parent76,57319%
Non-family112,45928%

Table: Households by Marital Status

Marital StatusHouseholds in Contra Costa County
TotalPercentage
Married couple217,99754%
Single189,03246%

Table: Householder Type by Sex

Type by SexHouseholds in Contra Costa County
TotalPercentage
Single parent - male24,11913%
Single parent - female52,45428%
Living alone - male35,30619%
Living alone - female51,90427%
Not living alone - male13,1907%
Not living alone - female12,0596%
* 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.

Tenure

66%
Owner
Owner-occupied households accounted for 66% of Contra Costa County’s 407,029 households in 2020. The remaining households were renter-occupied.

Households by Tenure

66%Owner
    267,041
    Owner
    139,988
    Renter
/View Households by Tenure dynamic table

Table: Households by Tenure

TenureHouseholds in Contra Costa County
TotalPercentage
Owner267,04166%
Renter139,98834%
* 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.

Size

30%
2 persons
Two-person households were the most common for Contra Costa County in 2020, while one-person households also represented a notable share of the county. Three-person households were next in the rankings, followed by four-person households.

Households by Size

035k70k105k140k1 person2 persons3 persons4 persons5 persons6 persons7+ persons21%30%17%17%8%3%3%
035k70k105k140k21%30%17%17%8%3%3%1 person2 persons3 persons4 persons5 persons6 persons7+ persons
/View Households by Size dynamic table

Table: Households by Size

SizeHouseholds in Contra Costa County
TotalPercentage
1 person87,21021%
2 persons122,49630%
3 persons70,41717%
4 persons69,77017%
5 persons32,4188%
6 persons14,2113%
7+ persons10,5073%
* 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.