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Erwin town, SD

ZIP 57233 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 57233

57233 has a population of 240 with a median age of 19.7 yrs (67.9% male).

Race & Ethnicity
White
100.0%+62% vs US avg
x
Black
0.0%
x
Asian
0.0%
x
Hispanic
0.0%
x
Age Groups
0–17
45.0%+105% vs US avg
x
18–64
46.3%-25% vs US avg
x
65+
8.8%-46% vs US avg
x
Education
Less than HS
0.0%
x
High school
60.9%+132% vs US avg
x
Some college
27.2%-6% vs US avg
x
Bachelor's+
12.0%-65% vs US avg
x
Marital Status
Married
43.0%-10% vs US avg
x
Never married
50.3%+49% vs US avg
x
Divorced
3.3%-68% vs US avg
x
Widowed / Separated
3.3%
x
Diversity Index
0/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
1.3%-89% vs US avg
x
Veterans
6.1%+1% vs US avg
x
Disability
1.3%-91% vs US avg
x
Single Parent
0.0%
x
Top ancestry
AmericanFinnishNorwegian

Health & Community Indicators in 57233

Poverty Rate
1.3%-89% vs US avg
x
Veterans
6.1%+1% vs US avg
x
Single Parent
0.0%
x
Disability
1.3%-91% vs US avg
x
Uninsured
21.7%+171% vs US avg
x
SNAP Benefits
2.0%-83% vs US avg
x
Private School
0.0%
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population240
Median age19.7
Poverty rate1.3%
Demographics statistics
Demographics
White100.0%
Hispanic0.0%
Black0.0%
Asian0.0%