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Custer city, SD

ZIP 57730 — 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 57730

57730 has a population of 5,647 with a median age of 57.6 yrs (47.2% male).

Race & Ethnicity
White
91.4%+48% vs US avg
x
Black
0.3%-97% vs US avg
x
Asian
0.5%-92% vs US avg
x
Hispanic
1.8%-90% vs US avg
x
Other / Two+
5.9%
x
Age Groups
0–17
13.7%-38% vs US avg
x
18–64
52.5%-15% vs US avg
x
65+
33.9%+108% vs US avg
x
Education
Less than HS
5.0%-55% vs US avg
x
High school
29.8%+14% vs US avg
x
Some college
29.8%+3% vs US avg
x
Bachelor's+
35.4%+5% vs US avg
x
Marital Status
Married
64.3%+34% vs US avg
x
Never married
21.7%-36% vs US avg
x
Divorced
8.6%-16% vs US avg
x
Widowed / Separated
5.4%
x
Diversity Index
16/100

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

Social & household profile

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

Poverty Rate
7.7%-33% vs US avg
x
Foreign Born
26.4%+90% vs US avg
x
Veterans
15.2%+153% vs US avg
x
Disability
22.1%+65% vs US avg
x
Single Parent
3.2%-60% vs US avg
x
Recent Births
19.1%+228% vs US avg
x
Top ancestry
GermanIrishEnglish

Health & Community Indicators in 57730

Poverty Rate
7.7%-33% vs US avg
x
Veterans
15.2%+153% vs US avg
x
Foreign Born
26.4%+90% vs US avg
x
Single Parent
3.2%-60% vs US avg
x
Disability
22.1%+65% vs US avg
x
Uninsured
11.7%+46% vs US avg
x
SNAP Benefits
5.0%-57% vs US avg
x
Private School
0.0%
x
Recent Births
19.1%+228% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population5,647
Median age57.6
Poverty rate7.7%
Demographics statistics
Demographics
White91.4%
Hispanic1.8%
Black0.3%
Asian0.5%
Foreign-born26.4%