Demographics & People — Affton, Missouri

Population Overview

Population (Census)20,035
Estimated 2026~16,900
Median Age42.0
Total Households8,862
Family Households5,227
Average Household Size2.26
Diversity Index0.2519 (somewhat diverse)

Race & Ethnicity

White16,460
Black or African American615
Asian871
Hispanic or Latino1,173

Heritage & Ancestry

GroupCount
German5,845
Unclassified or not reported3,914
Other groups3,074
Irish2,858
English2,068
Yugoslavian1,287
American1,207
Italian1,063
Hispanic: Hispanic or Latino916
French (except Basque)633

Language

English Only15,604
Spanish899
Population 5+18,779

Veterans

Veterans1,295
Population 18+16,355

Commuting

Mean Commute Time23.5 minutes
Work from Home11.6%
Commuter ProfileN/A
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Affton, Missouri.