Clayton, California Demographics & Population 2026

Name: Clayton, California Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

During the 2020–2024 ACS period, Clayton, California had a total population of 10,937, the 475th largest city in California, with a median household income of $175,707, which is 77% higher than the state average. The poverty rate is 2.5%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Key Takeaways

Household income is 77% above the state average — one of the wealthiest communities in California.
An exceptionally low poverty rate of 2.5% — among the lowest in California.

Clayton Quick Facts

Population 10,937

Median Household Income $175,707

Median Home Value $1,055,200

Poverty Rate 2.5%

Unemployment Rate 6.8%

Median Age 43.8 years

Homeownership Rate 89.2%

Affordability Ratio 6.0x

Bachelor's Degree or Higher 59.1%

High School Graduation Rate 99.1%

Diversity Index 56/100

Population 10,937 475th of 1,570

Median Income $175,707 top 10%

Poverty Rate 2.5% 80% lower than national

Median Home Value $1,055,200 top 20%

How Clayton Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	10,962	10,937	-0.2%
Median household income	$172,226	$175,707	+2.0%
Median home value	$1,017,300	$1,055,200	+3.7%

How Clayton Compares

Median Household Income

Clayton

$175,707

$99,122

National

$80,734

Median Home Value

Clayton

$1,055,200

$734,700

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 4.0%

$25K-$50K 5.5%

$50K-$100K 14.6%

$100K+ 75.9%

Detailed income brackets

Under $10K

1.7%

$10K-$15K

0.3%

$15K-$20K

1.5%

$20K-$25K

0.4%

$25K-$30K

0.4%

$30K-$35K

1.9%

$35K-$40K

1.6%

$40K-$45K

0.8%

$45K-$50K

0.8%

$50K-$60K

3.5%

$60K-$75K

4.4%

$75K-$100K

6.8%

$100K-$125K

9.0%

$125K-$150K

6.1%

$150K-$200K

20.9%

$200K+

39.9%

Employment

6.8% Unemployment Rate State: 6.6%|National: 5.2%

64.9% Labor Force Participation

Housing Overview

Owner 89.2%

Renter 10.8%

Affordability Index Expensive

6.0x home value to income ratio

Median gross rent $3,501/mo 23.9% of median household income annually

People & Demographics

Age Distribution

Under 18

23.6%

18-34

16.5%

35-54

25.5%

55-74

28.2%

75+

6.1%

Race & Ethnicity

Diversity Index

High Diversity

A diverse community with significant representation from multiple racial and ethnic groups.

State average: 70 | National average: 61

Education

Educational Attainment (Adults 25+)

Clayton Rankings in California

#475 Population of 1,570

#124 Median Income of 1,375

#216 Education of 1,570

#241 Home Value of 1,376

Explore California Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Other Cities in Contra Costa County

City	Population	Median Income	Poverty	Home Value
Concord	124,035	$108,709	8.2%	$797,600
Antioch	116,477	$97,465	11.4%	$629,700
Richmond	115,505	$95,391	13.6%	$668,200
San Ramon	85,993	$196,161	4.4%	$1,509,500
Pittsburg	76,257	$99,861	11.2%	$597,900
Walnut Creek	70,088	$130,432	6.4%	$1,057,300
Brentwood	65,208	$142,494	8.3%	$836,600
Oakley	45,183	$137,677	6.1%	$660,200
Danville	43,401	$232,216	3.8%	$1,681,700
Martinez	36,903	$127,355	6.3%	$859,800

Cities Similar to Clayton

These cities in the same state have comparable population and economic profiles.

City	Population	Median Income	Home Value	Bachelor's+	Poverty
Half Moon Bay	11,391	$157,884	$1,549,500	52.4%	5.6%
Malibu	10,421	$194,421	$2,000,000+	68.6%	12.6%
Fairview	10,745	$148,667	$963,300	42.9%	4.4%
Sierra Madre	10,940	$143,547	$1,226,800	64.0%	4.6%
Del Aire	11,115	$141,533	$928,600	41.4%	9.5%

Population Overview

Clayton is a small city located in California, within Contra Costa County. The total population is 10,937. It ranks as the 475th most populous out of 1,570 Census-designated places in California.

Age Demographics

The median age in Clayton is 43.8 years. This is 16% higher than the state median of 37.9 years.

Economy, Income & Housing

The median household income in Clayton is $175,707. This is 77% higher than the state median of $99,122. It is also 118% higher than the national median of $80,734. The poverty rate stands at 2.5%. This is 79% lower than the state poverty rate of 12.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 6.8%. This is 2% higher than the state rate of 6.6%. The median home value is $1,055,200. Housing costs are 44% higher than the state median of $734,700. The home-value-to-income ratio is 6.0x. 89.2% of occupied housing units are owner-occupied. This homeownership rate is 60% higher than the state average of 55.9%.

Race & Ethnicity

The largest racial or ethnic group in Clayton is White (non-Hispanic), making up 63.0% of the population. Hispanic or Latino residents account for 13.5%. The White (non-Hispanic) population is significantly higher than the state average (63.0% vs 33.8%). The Black or African American population (0.4%) is well below the state average of 5.2%. The Hispanic or Latino population (13.5%) is well below the state average of 40.2%.

Education

59.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 59% higher than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 99.1%. Notably, 17.6% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Clayton, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.

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Frequently Asked Questions

What is the population of Clayton, California?

Clayton, California has a population of 10,937 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Clayton, CA?

The median household income in Clayton is $175,707, which is 118% higher than the national median of $80,734.

What is the poverty rate in Clayton, CA?

The poverty rate in Clayton is 2.5%. This means approximately 272 residents live below the federal poverty line.

What is the racial makeup of Clayton, California?

Clayton's population is 63.0% White, 0.4% Black, 13.5% Hispanic/Latino, and 12.7% Asian.

What is the median home value in Clayton, CA?

The median home value in Clayton is $1,055,200. The home-value-to-income ratio is 6.0x.

How educated is Clayton, California?

59.1% of adults (25+) in Clayton hold a bachelor's degree or higher, and 17.6% hold a graduate or professional degree.