Demographics of Clayton city, Missouri

Clayton city, Missouri had 17,807 people on July 1, 2025, by the Census Bureau’s estimate: +446 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Clayton city, in four figures

17,807
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 17,380 ±44.; +2.6%
Change since July 2020: +446 people.; 30.0 ±1.5
Median age: ACS 2020–⁠2024.; $123,000 ±$12,353
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Clayton city, Missouri's population grew 2.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Clayton city, Missouri's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Clayton city, Missouri's population grew 2.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Clayton city, Missouri's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	17,361	100.0	100.0
2021	17,293	99.6	100.2
2022	17,157	98.8	100.7
2023	17,510	100.9	101.6
2024	17,503	100.8	102.5
2025	17,807	102.6	103.1

Population of Clayton city, Missouri on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	17,361	—
2021	17,293	−68
2022	17,157	−136
2023	17,510	+353
2024	17,503	−7
2025	17,807	+304

Age, 2020–2024

The median age is 30.0 ±1.5: for men 29.1 ±2.1 and for women 30.6 ±2.1. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Clayton city by age, ACS 2020–2024
Age	People	Share	Missouri	United States
Under 5	434 ±130	2.5% ±0.7	5.8% ±<0.1	5.6% ±<0.1
5 to 17	2,636 ±382	15.2% ±2.2	16.6% ±0.1	16.3% ±<0.1
18 to 24	4,501 ±415	25.9% ±2.4	9.1% ±0.1	9.1% ±<0.1
25 to 44	3,821 ±440	22.0% ±2.5	26.0% ±0.1	26.9% ±<0.1
45 to 64	3,570 ±449	20.5% ±2.6	24.6% ±0.1	24.8% ±<0.1
65 and over	2,418 ±300	13.9% ±1.7	17.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $123,000 ±$12,353, and income per person $74,159 ±$9,826, in 2024 dollars. The median is $70,702 ±$325 in Missouri and $80,734 ±$166 in the United States.

Households by income

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Households in Clayton city by income, ACS 2020–2024
Household income	Households	Share	Missouri	United States
Under $25,000	655 ±229	10.5% ±3.7	15.8% ±0.2	14.6% ±<0.1
$25,000 to $49,999	512 ±167	8.2% ±2.7	19.6% ±0.2	16.7% ±<0.1
$50,000 to $74,999	951 ±268	15.3% ±4.3	17.4% ±0.2	15.5% ±<0.1
$75,000 to $99,999	549 ±182	8.8% ±2.9	13.2% ±0.2	12.6% ±<0.1
$100,000 to $149,999	960 ±219	15.4% ±3.5	17.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	657 ±181	10.6% ±2.9	8.2% ±0.1	9.6% ±<0.1
$200,000 or more	1,938 ±252	31.1% ±3.8	8.7% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Clayton city by age, ACS 2020–2024
Age	Below poverty	Rate	Missouri	United States
All ages	479 to 1,583	3.7% to 12.2%	12.6% ±0.2	12.5% ±0.1
Under 18	36 to 292	1.3% to 9.8%	15.8% ±0.4	16.1% ±0.1
18 to 59	297 to 1,075	4.4% to 15.5%	12.0% ±0.2	11.6% ±0.1
60 and over	67 to 295	2.3% to 9.5%	10.9% ±0.2	11.0% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Housing, 2020–2024

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Housing in Clayton city, ACS 2020–2024
Measure	Clayton city	Missouri	United States
Housing units	6,934 ±331	2,825,287 ±1,043	143,775,355 ±10,234
Occupied	89.7% ±5.8	88.8% ±0.2	89.9% ±0.1
Vacant	10.3% ±3.1	11.2% ±0.2	10.1% ±0.1
Owner occupied	54.9% ±4.2	68.1% ±0.3	65.2% ±0.3
Renter occupied	45.1% ±4.6	31.9% ±0.2	34.8% ±0.1
Median home value	$830,000 ±$64,829	$230,300 ±$880	$332,700 ±$236
Median gross rent	$1,692 ±$97	$1,033 ±$6	$1,413 ±$2
Median year built	1954 ±3	1978 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Clayton city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Missouri	United States
Hispanic or Latino	644 ±161	3.7% ±0.9	5.2% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	11,572 ±616	66.6% ±3.5	76.3% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	1,510 ±250	8.7% ±1.4	10.9% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	2,306 ±450	13.3% ±2.6	2.1% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	7 to 91	< 0.1% to 0.5%	0.2% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 19	0% to 0.1%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	35 to 139	0.2% to 0.8%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,212 ±397	7.0% ±2.3	4.8% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Clayton city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Missouri	United States
Born in the state	7,452 ±627	42.9% ±3.6	65.6% ±0.2	57.3% ±<0.1
Born in another state	7,245 ±475	41.7% ±2.7	29.1% ±0.1	26.9% ±<0.1
Born a citizen outside the states	260 ±117	1.5% ±0.7	0.8% ±<0.1	1.7% ±<0.1
Born abroad	2,423 ±528	13.9% ±3.0	4.5% ±0.1	14.1% ±<0.1
Naturalized citizens	788 ±209	4.5% ±1.2	2.3% ±0.1	7.4% ±<0.1
Not citizens	1,635 ±579	9.4% ±3.3	2.2% ±0.1	6.8% ±<0.1

Clayton city among the places of Missouri

49th of 143 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Missouri page.

Places of Missouri near Clayton city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Ferguson city	18,213 ±30
Manchester city	18,160 ±52
Lake St. Louis city	18,066 ±32
Spanish Lake CDP	17,873 ±1,543
Kirksville city	17,563 ±34
Clayton city	17,380 ±44
Hannibal city	16,771 ±84
Sikeston city	16,320 ±318
Grain Valley city	16,271 ±27
Poplar Bluff city	16,254 ±28
Lemay CDP	16,228 ±1,765

Rankings this appears in

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026