Contra Costa County, CA

County

Add Comparison

2021 Population

1.16M

1.21% 1-year growth

US Senator

Dianne Feinstein

Democratic Party

US Senator

Alex Padilla

Democratic Party

2021 Median Age

39.9

0% 1-year change

2021 Poverty Rate

8.2%

0.371% 1-year increase

2021 Median Household Income

$110,455

6.21% 1-year growth

2021 Median Property Value

$689,000

5.11% 1-year growth

2021 Employed Population

570,386

1.17% 1-year growth

About

In 2021, Contra Costa County, CA had a population of 1.16M people with a median age of 39.9 and a median household income of $110,455. Between 2020 and 2021 the population of Contra Costa County, CA grew from 1.15M to 1.16M, a 1.21% increase and its median household income grew from $103,997 to $110,455, a 6.21% increase.

The 5 largest ethnic groups in Contra Costa County, CA are White (Non-Hispanic) (41.6%), Asian (Non-Hispanic) (17.6%), Other (Hispanic) (11.3%), White (Hispanic) (8.35%), and Black or African American (Non-Hispanic) (8.29%).

None of the households in Contra Costa County, CA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.

89.4% of the residents in Contra Costa County, CA are U.S. citizens.

The largest universities in Contra Costa County, CA are Diablo Valley College (3,526 degrees awarded in 2021), Los Medanos College (2,255 degrees), and Contra Costa College (1,662 degrees).

In 2021, the median property value in Contra Costa County, CA was $689,000, and the homeownership rate was 67%.

Most people in Contra Costa County, CA drove alone to work, and the average commute time was 37.8 minutes. The average car ownership in Contra Costa County, CA was 2 cars per household.

Contra Costa County, CA borders Alameda County, CA, Marin County, CA, Sacramento County, CA, San Francisco County, CA, San Joaquin County, CA, Solano County, CA, and Sonoma County, CA.

Photo by Images by John 'K'

United States California San Francisco-Oakland-Hayward, CA

Population & Diversity

Contra Costa County, CA is home to a population of 1.16M people, from which 89.4% are citizens. As of 2021, 25% of Contra Costa County, CA residents were born outside of the country (290k people).

In 2021, there were 2.37 times more White (Non-Hispanic) residents (484k people) in Contra Costa County, CA than any other race or ethnicity. There were 204k Asian (Non-Hispanic) and 131k Other (Hispanic) residents, the second and third most common ethnic groups.

Population & Diversity

Citizenship

89.4%

2021 Citizenship

89.2%

2020 Citizenship

As of 2021, 89.4% of Contra Costa County, CA residents were US citizens, which is lower than the national average of 93.4%. In 2020, the percentage of US citizens in Contra Costa County, CA was 89.2%, meaning that the rate of citizenship has been increasing.

The following chart shows US citizenship percentages in Contra Costa County, CA compared to that of it's neighboring and parent geographies.

Diversity

Race and Ethnicity

The 3 largest ethnic groups in Contra Costa County, CA

White (Non-Hispanic)
484k ± 1.52k
Asian (Non-Hispanic)
204k ± 2k
Other (Hispanic)
131k ± 4.51k

26.2%

Hispanic Population

304k people

26.2% of the people in Contra Costa County, CA are hispanic (304k people).

The following chart shows the 7 races represented in Contra Costa County, CA as a share of the total population.

Global Diversity

The PUMS dataset is not available at the County level, so we are showing data for California.

Most Common Origin

Mexico
3,959,545 ± 46,338 people
Philippines
828,655 ± 22,113 people
China
680,942 ± 20,084 people

In 2021, the most common birthplace for the foreign-born residents of California was Mexico, the natal country of 3,959,545 California residents, followed by Philippines with 828,655 and China with 680,942.

Foreign-Born Population

25%

2021 Foreign-Born Population

290k people

24.9%

2020 Foreign-Born Population

285k people

As of 2021, 25% of Contra Costa County, CA residents (290k people) were born outside of the United States, which is higher than the national average of 13.6%. In 2020, the percentage of foreign-born citizens in Contra Costa County, CA was 24.9%, meaning that the rate has been increasing.

The following chart shows the percentage of foreign-born residents in Contra Costa County, CA compared to that of it's neighboring and parent geographies.

Military

Veterans

Most Common Service Period

Vietnam
15,370 ± 957
Gulf War (2001-)
6,502 ± 687
Gulf War (1990s)
5,114 ± 589

Contra Costa County, CA has a large population of military personnel who served in Vietnam, 2.36 times greater than any other conflict.

Economy

The economy of Contra Costa County, CA employs 570k people. The largest industries in Contra Costa County, CA are Health Care & Social Assistance (79,497 people), Professional, Scientific, & Technical Services (66,759 people), and Retail Trade (56,581 people), and the highest paying industries are Management of Companies & Enterprises ($151,579), Mining, Quarrying, & Oil & Gas Extraction ($128,021), and Utilities ($127,594).

Males in California have an average income that is 1.26 times higher than the average income of females, which is $69,050. The income inequality in California (measured using the Gini index) is 0.497, which is higher than than the national average.

Employment

Occupations

570k

2021 Value

± 6,296

1.17%

1 Year growth

± 1.56%

From 2020 to 2021, employment in Contra Costa County, CA grew at a rate of 1.17%, from 564k employees to 570k employees.

The most common job groups, by number of people living in Contra Costa County, CA, are Management Occupations (78,416 people), Office & Administrative Support Occupations (58,510 people), and Sales & Related Occupations (56,207 people). This chart illustrates the share breakdown of the primary jobs held by residents of Contra Costa County, CA.

Unemployment Insurance Claims

Data is only available at the state level. Showing data for false.

This chart shows weekly unemployment insurance claims in California (not-seasonally adjusted) compared with the four states with the most similar impact.

The most recent data point uses Advance State Claims data, which can be revised in subsequent weeks.

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Industries

Employment by Industries

570k

2021 Value

± 6,296

1.17%

1 Year growth

± 1.56%

From 2020 to 2021, employment in Contra Costa County, CA grew at a rate of 1.17%, from 564k employees to 570k employees.

The most common employment sectors for those who live in Contra Costa County, CA, are Health Care & Social Assistance (79,497 people), Professional, Scientific, & Technical Services (66,759 people), and Retail Trade (56,581 people). This chart shows the share breakdown of the primary industries for residents of Contra Costa County, CA, though some of these residents may live in Contra Costa County, CA and work somewhere else. Census data is tagged to a residential address, not a work address.

Median Earnings by Industry

$66,459

Median earning men ± $1,039

$47,044

Median earning women ± $1,003

The industries with the best median earnings for men in 2021 are Information ($128,949), Finance & Insurance, & Real Estate & Rental & Leasing ($112,500), and Public Administration ($103,876).

The industries with the best median earnings for women in 2021 are Information ($75,796), Finance & Insurance, & Real Estate & Rental & Leasing ($75,780), and Public Administration ($73,415).

Employment by Industry Sector

Data is only available at the state level. Showing data for false.

Y-Axis

2.75%

Year-over-year growth

Employment change between February 2022 and February 2023

As of February 2023, there are 155M people employed in California. This represents a 2.75% increase in employment when compared to February 2022.

The following chart shows monthly employment numbers for each industry sector in California.

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Establishments by Size

The industries with the most establishments

11,860
Educational Services, Health Care & Social Assistance
6,672
Finance & Insurance, and Real Estate, Rental & Leasing
6,657
Professional, Scientific & Management, and Administrative & Waste Management Services

The visualization shows the distribution of establishments by industry and by size according to the number of employees.

Payroll by Industry Sector

The industries with the highest total annual payroll

$11.7M
Educational Services, Health Care & Social Assistance
$8.42M
Finance & Insurance, and Real Estate, Rental & Leasing
$6.44M
Professional, Scientific & Management, and Administrative & Waste Management Services

The chart shows the total annual payroll and the average annual payroll by industry.

Domestic Trade

Domestic Production & Consumption

Domestic production and consumption consists of products and services shipped from California to other states, or from other states to California.

Top Domestic Production in Dollars

In 2020, the top outbound California product (by dollars) was Electronics with $405B, followed by Mixed freight ($159B) and Pharmaceuticals ($155B).

The following chart shows the share of these products in relation to all outbound California products.

Domestic Trade Growth

Showing data for California.

$2.21T

2020 Value in California

$4.61T

Projected 2050 Value in California

109% growth

In 2020, total outbound California trade was $2.21T. This is expected to increase 109% to $4.61T by 2050.

The following chart shows how the domestic outbound California trade is projected to change in comparison to its neighboring states.

Interstate Trade

Interstate trade consists of products and services shipped from California to other states, or from other states to California.

Most Common Trade Partners

Texas
$84.4B
Arizona
$44.8B
Ohio
$40.6B

In 2020, the top outbound California domestic partner for goods and services (by dollars) was Texas with $84.4B, followed by Arizona with $44.8B and Ohio and $40.6B.

The following map shows the amount of trade that California shares with each state (excluding itself).

Civics

In the 2020 presidential election, the popular vote in Contra Costa County, CA went to Joseph R Biden Jr. with 71.6% of the vote. The runner-up was Donald J. Trump (26.3%), followed by Jo Jorgensen (1.05%).

Dianne Feinstein and Alex Padilla are the senators currently representing the state of California. In the United States, senators are elected to 6-year terms with the terms for individual senators staggered.

California is currently represented by 52 members in the U.S. house, and members of the House of Representives are elected to 2-year terms.

Presidential Elections

Presidential Popular Vote Over Time

2020 Election Results

Joseph R Biden Jr. (71.6%)
Democratic Party
Donald J. Trump (26.3%)
Republican Party
Jo Jorgensen (1.05%)
Libertarian Party

The following chart shows the popular vote results in Contra Costa County, CA for each registered party from 1976 to 2020.

Senator Elections

US Senators from California

Senatorial voting results are only available at the state level. Showing data for California.

Dianne Feinstein

Senator from California

Assumed office on November 10, 1992
Elected to the seat to succeed John Seymour (California politician)|John Seymour, who had been appointed to the seat after Pete Wilson was elected Governor of California.

Alex Padilla

Senator from California

Assumed office on January 18, 2021
Appointed to the seat following the resignation of Kamala Harris, who had become Vice President of the United States.

Dianne Feinstein and Alex Padilla are the senators currently representing California.

In the United States, senators are elected to 6-year terms with the terms for individual senators staggered.

The following chart shows elected senators in California over time, excluding special elections, colored by their political party.

US Representative Elections

US Representatives from California

California is currently represented by 52 members in the U.S. house.

Members of the House of Representives are elected to 2-year terms, and the following chart shows the how the members for California have changed over time starting in 2008.

Education

In 2021, universities in Contra Costa County, CA awarded 9,917 degrees. The student population of Contra Costa County, CA in 2021 is skewed towards women, with 15,275 male students and 20,420 female students.

Most students graduating from Universities in Contra Costa County, CA are Hispanic or Latino (3,643 and 38.3%), followed by White (2,539 and 26.7%), Asian (1,645 and 17.3%), and Black or African American (737 and 7.74%).

The largest universities in Contra Costa County, CA by number of degrees awarded are Diablo Valley College (3,526 and 35.6%), Los Medanos College (2,255 and 22.7%), and Contra Costa College (1,662 and 16.8%).

The most popular majors in Contra Costa County, CA are Liberal Arts & Sciences (2,049 and 20.7%), Biological & Physical Sciences (916 and 9.24%), and General Business Administration & Management (546 and 5.51%).

The median tuition cost in Contra Costa County, CA for private four year colleges is $51,568.

Admissions & Enrollments

Applicants, Admissions & Enrolled

University

Measure

In 2021 in Contra Costa County, CA, the percentage of applicants admitted was 70.1%, while the percentage of admitted who enrolled was 17.1%. The number of students enrolled in 2021 was 35,695 (42.8% men and 57.2% women).

The line chart shows the evolution of the percentage of applicants admitted, admitted who enrolled or the number of students enrolled according to the option selected in the upper button.

Enrollments by Gender and Races

Universities

In 2021 there were 35,695 students enrolled in Contra Costa County, CA, 42.8% men and 57.2% women.

By race, the largest number of students enrolled was concentrated in Hispanic or Latino with 12,237 records, of which 60.9% were women and 39.1% men.

Completions

Concentrations

Most Common

Biological & Physical Sciences
702 degrees awarded
Liberal Arts & Sciences
495 degrees awarded
General Psychology
387 degrees awarded

In 2021, the most common concentation for Associates Degree recipients in Contra Costa County, CA was Biological & Physical Sciences with 702 degrees awarded.

This visualization illustrates the percentage of students graduating with a Associates Degree from schools in Contra Costa County, CA according to their major.

Universities

Gender

Race

Largest Universities by degrees awarded

Diablo Valley College
3,526 degrees awarded
Los Medanos College
2,255 degrees awarded
Contra Costa College
1,662 degrees awarded

In 2021, the institution with the largest number of graduating students was Diablo Valley College with 3,526 degrees awarded.

Student Diversity

University

In 2021, 3,431 men were awarded degrees from institutions in Contra Costa County, CA, which is 0.529 times less than the 6,486 female students who received degrees in the same year.

In 2021 the most common race/ethnicity group awarded degrees at institutions was Hispanic or Latino students. These 3,643 degrees mean that there were 1.43 times more degrees awarded to Hispanic or Latino students then the next closest race/ethnicity group, White, with 2,539 degrees awarded.

Awarded Degrees over Time

The graph shows the evolution of awarded degrees by degrees. Under the paragraphs, the average number of awarded degrees by university in each degree is shown.

Tuition

Average Net Price by Sector

Universities

Private not-for-profit, 4-year or above ($51,568) is the sector with the highest median state tuition in 2021.

Private not-for-profit, 4-year or above ($200) is the sector with the highest median state fee in 2021.

Public, 2-year ($1,080) is the sector with the highest average net price of books and supplies.

The graph shows the average net price by sector and year.

Working Population

Educational Pyramid

Data is only available at the state level. Showing data for California.

Measure

In 2021, 1.89% of men over 25 years of age had not completed any academic degree (no schooling), while 2.12% of women were in the same situation.

This visualization shows the gender distribution of the population according to the academic level reached.

Educational Attainment

Data is only available at the state level. Showing data for California.

Race

The most common educational levels obtained by the working population in 2021 were Some college (7.01M), High School or Equivalent (6.74M), and Bachelors Degree (6.25M).

This visualization illustrates the percentage distribution of the population according to the highest educational level reached. You can filter the data by race by using the selector above.

Housing & Living

The median property value in Contra Costa County, CA was $689,000 in 2021, which is 2.81 times larger than the national average of $244,900. Between 2020 and 2021 the median property value increased from $655,500 to $689,000, a 5.11% increase. The homeownership rate in Contra Costa County, CA is 67%, which is approximately the same as the national average of 64.6%.

People in Contra Costa County, CA have an average commute time of 37.8 minutes, and they drove alone to work. Car ownership in Contra Costa County, CA is approximately the same as the national average, with an average of 2 cars per household.

Median household income in Contra Costa County, CA is $110,455. In 2021, the tract with the highest Median Household Income in Contra Costa County, CA was Census Tract 3461.02 with a value of $250,001, followed by Census Tract 3480 and Census Tract 3512, with respective values of $250,001 and $250,001.

In 2022, 20.5% of the population was living with severe housing problems in Contra Costa County, CA. From 2014 to 2022, the indicator declined 3.05%.

Housing

Property

$689,000

Median Property Value 2021

±$4,125

$271,379

Median Property Taxes

±$3,236

The following chart display owner-occupied housing units distributed between a series of property tax buckets compared to the national averages for each bucket. In Contra Costa County, CA the largest share of households pay taxes in the $3k+ range.

The chart underneath the paragraph shows the property taxes in Contra Costa County, CA compared to it's parent and neighbor geographies.

Rent vs Own

67%

Homeownership

2021

69.8%

Homeowners with Mortgage

2021

In 2021, 67% of the housing units in Contra Costa County, CA were occupied by their owner. This percentage grew from the previous year's rate of 66.8%.

This chart shows the percentage of owner in Contra Costa County, CA compared it's parent and neighboring geographies.

Equity

Income by Location

Use the dropdown to filter by race/ethnicity.

Race/Ethnicity

Highest Median Household Income (Total)

Census Tract 3461.02
Census Tract 3480
Census Tract 3512

In 2021, the tract with the highest Median Household Income (Total) in Contra Costa County, CA was Census Tract 3461.02 with a value of $250,001, followed by Census Tract 3480 and Census Tract 3512, with respective values of $250,001 and $250,001.

The following map shows all of the tracts in Contra Costa County, CA colored by their Median Household Income (Total).

Household Income

Please note that the buckets used in this visualization were not evenly distributed by ACS when publishing the data.

$110,455

Median Household Income

± $1,219

405k

Number of Households

± 4,985

In 2021, the median household income of the 405k households in Contra Costa County, CA grew to $110,455 from the previous year's value of $103,997.

The following chart displays the households in Contra Costa County, CA distributed between a series of income buckets compared to the national averages for each bucket. The largest share of households have an income in the $200k+ range.

Wage Distribution

The closest comparable wage GINI for Contra Costa County, CA is from California.

0.497

2021 Wage GINI in California

0.498

2020 Wage GINI in California

In 2021, the income inequality in California was 0.497 according to the GINI calculation of the wage distribution. Income inequality had a 0.12% decline from 2020 to 2021, which means that wage distribution grew somewhat more even. The GINI for California was higher than than the national average of 0.478. In other words, wages are distributed less evenly in California in comparison to the national average.

This chart shows the number of workers in California across various wage buckets compared to the national average.

Transportation

Commuter Transportation

Most Common Commute in 2021

Drove Alone (63.5%)
Worked At Home (14.3%)
Carpooled (10.1%)

In 2021, 63.5% of workers in Contra Costa County, CA drove alone to work, followed by those who worked at home (14.3%) and those who carpooled to work (10.1%).

The following chart shows the number of households using each mode of transportation over time, using a logarithmic scale on the y-axis to help better show variations in the smaller means of commuting.

Commute Time

37.8 minutes

Average Travel Time

Using averages, employees in Contra Costa County, CA have a longer commute time (37.8 minutes) than the normal US worker (26.8 minutes). Additionally, 8.64% of the workforce in Contra Costa County, CA have "super commutes" in excess of 90 minutes.

The chart below shows how the median household income in Contra Costa County, CA compares to that of it's neighboring and parent geographies.

Car Ownership

2 cars

Average Number

The following chart displays the households in Contra Costa County, CA distributed between a series of car ownership buckets compared to the national averages for each bucket. The largest share of households in Contra Costa County, CA have 2 cars.

Poverty

Severe Housing Problems

In 2022, 20.5% of the population was living with severe housing problems in Contra Costa County, CA. From 2014 to 2022, the indicator declined 3.05%.

The graph shows the trend of the percentage of the population living with severe housing problems.

Poverty & Diversity

8.2% of the population for whom poverty status is determined in Contra Costa County, CA (94.5k out of 1.15M people) live below the poverty line, a number that is lower than the national average of 12.6%. The largest demographic living in poverty are Females 25 - 34, followed by Females 35 - 44 and then Females 55 - 64.

The most common racial or ethnic group living below the poverty line in Contra Costa County, CA is White, followed by Hispanic and Other.

The Census Bureau uses a set of money income thresholds that vary by family size and composition to determine who classifies as impoverished. If a family's total income is less than the family's threshold than that family and every individual in it is considered to be living in poverty.

Children in Poverty

In 2022, 7.9% of the children was living in poverty in Contra Costa County, CA. From 2014 to 2022, the indicator declined 6.6%.

The graph shows the trend of the percentage of the children living in poverty.

Social Needs

Data only available at the state level.

Most prevalent states

California
35,798 individuals
New York
5,087 individuals
Florida
4,915 individuals

In 2017, California had the highest estimated number of chronically homeless individuals in the nation, at 35,798. New York has the second highest (5,087), followed by Florida (4,915).

The following map shows the estimated number of chronically homeless individuals by state over multiple years.

Security

Crimes & Accidents

Indicator

In 2022, the number of reported violent crimes offenses per 100,000 population was 336 in Contra Costa County, CA. From 2014 to 2022, the indicator declined 61.7 per 100,000 population.

The graph shows the trend in the number of reported violent crimes offenses per 100,000 population.

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Health

95.3% of the population of Contra Costa County, CA has health coverage, with 55.1% on employee plans, 15.7% on Medicaid, 11.5% on Medicare, 12.4% on non-group plans, and 0.557% on military or VA plans.

Primary care physicians in Contra Costa County, CA see 977 patients per year on average, which represents a 1.03% increase from the previous year (967 patients). Compare this to dentists who see 1104 patients per year, and mental health providers who see 263 patients per year.

By gender, of the total number of insured persons, 48.6% were men and 51.4% were women.

Coverage

Patient to Clinician Ratios

977 to 1

Patient to Primary Care Physician Ratio in Contra Costa County, CA

Primary care physicians in Contra Costa County, CA see an average of 977 patients per year. This represents a 1.03% increase from the previous year (967 patients).

The following chart shows how the number of patients seen by primary care physicians has been changing over time in Contra Costa County, CA in comparison to its neighboring geographies.

Health Care Diversity

In 2021, insured persons according to age ranges were distributed in 24.1% under 18 years, 19.2% between 18 and 34 years, 41% between 35 and 64 years, and 15.7% over 64 years.

By gender, of the total number of insured persons, 48.6% were men and 51.4% were women.

The following chart shows the number of people with health coverage by gender.

Uninsured People

4.73%

Uninsured

55.1%

Employer Coverage

15.7%

Medicaid

11.5%

Medicare

12.4%

Non-Group

0.557%

Military or VA

Between 2020 and 2021, the percent of uninsured citizens in Contra Costa County, CA declined by 5.31% from 5% to 4.73%.

The following chart shows how the percent of uninsured individuals in Contra Costa County, CA changed over time compared with the percent of individuals enrolled in various types of health insurance.

Health Indicators

Health Outcomes

Indicator

In 2022, the number of deaths among residents under age 18 per 100,000 population was 30.2 in Contra Costa County, CA.

The graphic shows the trend of the indicator in Contra Costa County, CA.

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Health Behaviors

Indicator

In 2022, the percentage of the adult population (age 18 and older) that reports a body mass index (BMI) greater than or equal to 30 kg/m2 (age-adjusted) was 23.9% in Contra Costa County, CA.

The graphic shows the trend of the indicator in Contra Costa County, CA.

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