† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupClaytonMissouriUnited States
German24.5%21.3%12.5%
Irish13.4%11.8%9.4%
English10.0%11.9%9.5%
American6.0%6.8%5.3%
Italian5.1%3.2%4.8%
Polish2.6%1.3%2.2%
French2.6%2.2%1.6%
Scottish1.6%1.8%1.3%
Asian Indian5.2%0.6%1.4%
Chinese3.0%0.4%1.3%
Filipino1.1%0.2%0.9%
Vietnamese1.1%0.2%0.6%
Korean0.8%—0.4%
Pakistani0.5%——
African American†8.3%10.0%9.9%
African0.2%0.3%0.5%
Mexican2.2%3.2%11.3%
Puerto Rican0.2%0.4%1.8%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Clayton
Missouri
United States
Median age
30
39.2
39.1
Age 18–24
25.9%
9.2%
9.2%
Age 65 and older
13.9%
17.9%
17.2%
Household economy
Measure
Clayton
Missouri
United States
Median household income
$123,000
$70,702
$84,427
Poverty rate
8.0%
12.6%
12.5%
Bachelor's degree or higher (25+)
84.9%
32.4%
35.6%
Languages at home
Measure
Clayton
Missouri
United States
Speaks a non-English language at home
15.3%
6.7%
22.3%
Spanish
1.9%
2.9%
13.6%
Other Indo-European
1.6%
0.6%
2.0%
Chinese (incl. Mandarin & Cantonese)
4.8%
0.4%
1.1%
Arabic
2.1%
0.2%
0.4%
Religious landscape
Measure
Clayton
Missouri
United States
Catholic
—
12.5%
18.6%
Evangelical Protestant
—
24.1%
16.5%
Unclaimed / not counted
—
51.7%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Clayton, Missouri
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+29.6%
2008
+39.1%
2012
+23.8%
2016
+48.5%
2020
+54.8%
2024
+54.9%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
76.5%Harris6,183
21.6%Trump1,748
1.8%
D+54.9
D+0.1
D+56.4
8,078
D
76.8%Biden6,429
22.0%Trump1,842
1.2%
D+54.8
D+6.3
D+50.3
8,374
D
72.3%Clinton5,773
23.8%Trump1,899
3.9%
D+48.5
D+24.7
D+46.4
7,986
D
61.1%Obama5,234
37.3%Romney3,196
1.6%
D+23.8
R+15.3
D+19.9
8,564
D
69.1%Obama6,054
30.1%McCain2,633
0.8%
D+39.1
D+9.5
D+31.8
8,755
D
64.8%Kerry5,373
35.1%Bush2,916
0.1%
D+29.6
—
D+32.1
8,297
Clayton's dense concentration of law firms, county government offices, and high-income households makes it one of the most closely watched precincts in suburban St. Louis, despite a population under 18,000.
Across the recorded series it reached a Democratic high of 54.9 points in 2024. The 2024 margin was 54.9 points.
A population of 17,380, a 67% non-Hispanic-white share, and a median household income of $123,000 describe the city. The city's voting pattern over the last decade is most similar to that of Okemos and North Druid Hills.
Akashic
Political twins — cities
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
In 2024, Clayton, Missouri voted Democratic by 54.9 points (D+54.9), carried by the Democratic candidate. Out of 8,078 votes cast, 6,183 went Democratic and 1,748 went Republican.
How many people live in Clayton, Missouri?
Clayton, Missouri has a population of 17,380 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Clayton, Missouri?
Median household income in Clayton, Missouri is $123,000 — above the national median of $80,734. The Missouri state median is $70,702.
What is the political history of Clayton, Missouri?
Akashic tracks 6 presidential elections in Clayton, Missouri from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
