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Demographics & People — Decatur City, Iowa
Population Overview
Population (Census) 175
Estimated 2026 175
Median Age 37.4
Total Households 55
Family Households 48
Average Household Size 2.65
Diversity Index 0.0292 (relatively homogeneous)
Race & Ethnicity
White 133
Black or African American 0
Asian 0
Hispanic or Latino 2
Heritage & Ancestry
Group Count
Unclassified or not reported 67
German 26
American 25
Irish 12
Other groups 10
English 6
French (except Basque) 5
Dutch 4
Czechoslovakian 3
Hispanic: Spaniard 2
Language
English Only 129
Spanish 0
Population 5+ 133
Veterans
Veterans 6
Population 18+ 116
Commuting
Mean Commute Time 22.5 minutes
Work from Home 0%
Commuter Profile N/A
Source: Census ACS 5-Year 2022 — matched by state + place FIPS; Census ACS 2022; Census ACS 5-Year 2023, B19013 (county fallback). Data for Decatur City, Iowa.