Clayton, California Population 2021

12,403
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Clayton is a city located in California. With a 2020 population of 12,403, it is the 350th largest city in California and the 2655th largest city in the United States. Clayton is currently growing at a rate of 0.56% annually and its population has increased by 13.82% since the most recent census, which recorded a population of 10,897 in 2010. Clayton reached it's highest population of 12,403 in 2021. Spanning over 4 miles, Clayton has a population density of 3,230 people per square mile.

The average household income in Clayton is $191,059 with a poverty rate of 1.36%. The median rental costs in recent years comes to $2,627 per month, and the median house value is $771,400. The median age in Clayton is 45.9 years, 45.3 years for males, and 46.5 years for females. For every 100 females there are 91.7 males.

Clayton Demographics

According to the most recent ACS, the racial composition of Clayton was:

  • White: 83.13%
  • Asian: 7.63%
  • Two or more races: 5.69%
  • Black or African American: 2.31%
  • Other race: 1.13%
  • Native American: 0.12%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Clayton, California is 12,403, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 12,196.The last official US Census in 2010 recorded the population at 10,897.

Clayton, California Population 2021

Population by Race

Race Population Percentage
White10,04483.13%
Asian9227.63%
Two or More Races6875.69%
Black or African American2792.31%
Some Other Race1361.13%
American Indian and Alaska Native150.12%
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Clayton Population by Race

Clayton Population Pyramid 2021

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Clayton Median Age

45.9


Total

45.3


Male

46.5


Female

Clayton Adults

There are 9,321 adults, (2,108 of whom are seniors) in Clayton.

Clayton Age Dependency

67.5

Age Dependency Ratio

29.2

Old Age Dependency Ratio

38.3

Child Dependency Ratio

Clayton Sex Ratio

Female

6,302

52.16%

Male

5,781

47.84%

Clayton Population by Age

Clayton Renter vs Owner Occupied by Household Type

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Clayton Household Types

Type Owner Renter
Male100%0%
Non Family95.3%4.7%
All92.9%7.1%
Married92.6%7.4%
Female85.3%14.7%

92.9%

Rate of Home Ownership

Clayton Households and Families

Type Count Average Size Owned
All4,2322.8592.9
Married2,9633.3292.6
Non Family9321.1895.3
Female2523.2485.3
Male853.61100

3.27

Average Family Size

2.85

Average Household Size

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Clayton Households by Type

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Education Attained Count Percentage
Less Than 9th Grade100.12%
9th to 12th Grade1962.36%
High School Graduate85510.29%
Some College1,77421.36%
Associates Degree6718.08%
Bachelors Degree3,15037.92%
Graduate Degree1,65119.87%
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Clayton Educational Attainment by Sex (over 25)

Clayton Educational Attainment by Race

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Name Total High School Bachelors
White6,4736,3763,714
Hispanic757698296
Asian604577476
Multiple Races341293156
Black176174156
Other Race12710910
Native American1515

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among black people with a rate of 88.64%.

Clayton Educational Attainment by Race

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Name Average Male Female
Overall$84,479$104,417$70,911
Less Than High School$2,500$$2,500
High School Grad$45,815$46,429$44,948
Some College$57,125$75,987$52,182
Bachelors Degree$105,096$128,308$87,313
Graduate Degree$96,300$143,042$72,450

$84,479

Average Earnings

$104,417

Average Male

$70,911

Average Female

Clayton Earnings by Educational Attainment

Clayton Language by Age

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Clayton Language

87.21% of Clayton residents speak only English, while 12.79% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 4.51% of the population.

Clayton Language

Clayton Poverty by Race

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Name Total In Poverty Poverty Rate
White8,9681271.42%
Multiple685192.77%
Asian92290.98%
Hispanic1,23950.40%
Black27941.43%

1.36%

Overall Poverty Rate

1.34%

Male Poverty Rate

1.38%

Female Poverty Rate

Poverty in Clayton

The race most likely to be in poverty in Clayton is Multiple, with 2.77% below the poverty level.

The race least likely to be in poverty in Clayton is Hispanic, with 0.40% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.05%. Among those working part-time, it was 2.09%, and for those that did not work, the poverty rate was 3.02%.

Clayton Poverty

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Name Poverty
High School4.56%
Some College2.13%
Less Than High School0.97%
Bachelors or Greater0.87%

Clayton Poverty Rate by Education

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Name Poverty
Female Unemployed100.00%
Male Unemployed7.06%
Female Employed0.59%
Male Employed0.36%

Clayton Poverty Rate by Employment Status and Sex

Clayton Income by Household Type

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Name Median Mean
Households$157,768$191,059
Families$174,741$210,434
Married Families$180,347-
Non Families$90,000$119,386
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Income by Household Type

Clayton Marital Status

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Marriage Rates

61.2%

Overall Marriage Rate

66.4%

Male Marriage Rate

56.7%

Female Marriage Rate

Clayton Married by Age and Sex

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Clayton Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Clayton Marital Status by Race

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Clayton Marital Status

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646

Number of Veterans

607

Male Veterans

39

Female Veterans

War Veterans
Vietnam210
First Gulf War116
World War II59
Korea47
Second Gulf War38

Clayton Veterans by War

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Age Group Veterans
75+254
35 to 54167
65 to 74119
55 to 64106
18 to 34

Clayton Veterans by Age

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Name Veterans % of Total
White6117.74%
Asian344.72%
Hispanic111.21%
Black10.57%

Clayton Veterans by Race

Clayton Veterans by Education

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0.31%

Veteran Poverty Rate

24.77%

Veteran Disability Rate

Clayton Veterans by Education

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63.2%

Labor Force Participation

61.2%

Employment Rate

3.1%

Unemployment Rate

Clayton Employment by Age

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Clayton Employment by Race

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Clayton Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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64.45%

Born in California

89.06%

Native Born

10.94%

Foreign Born

2.84%

Non Citizen

8.10%

Naturalized

Place of Birth

89.06% of Clayton residents were born in the United States, with 64.45% having been born in California. 2.84% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Clayton Place of Birth

Year Population Growth Annual Growth Rate
202112,403690.56%
202012,334690.56%
201912,265690.57%
201812,196690.57%
201712,1271190.99%
201612,0081681.42%
201511,8401731.48%
201411,6671861.62%
201311,4812101.86%
201211,2711231.10%
201111,1481901.73%
201010,9581960.18%
200010,7623,4453.93%
19907,3172,9925.40%
19804,3252,94012.06%
19701,3850.00%

Clayton Population by Year