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Bison town, SD

ZIP 57620 — People & Community

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

Middle ClassLow Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 57620

57620 has a population of 590 with a median age of 46.1 yrs (51.4% male).

Race & Ethnicity
White
97.3%+58% vs US avg
x
Black
0.0%
x
Asian
0.0%
x
Hispanic
0.0%
x
Other / Two+
2.7%
x
Age Groups
0–17
24.9%+13% vs US avg
x
18–64
51.4%-17% vs US avg
x
65+
23.7%+46% vs US avg
x
Education
Less than HS
4.1%-63% vs US avg
x
High school
33.3%+27% vs US avg
x
Some college
39.4%+36% vs US avg
x
Bachelor's+
23.2%-31% vs US avg
x
Marital Status
Married
77.6%+61% vs US avg
x
Never married
12.7%-63% vs US avg
x
Divorced
4.2%-59% vs US avg
x
Widowed / Separated
5.5%
x
Diversity Index
5/100

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

Social & household profile

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

Poverty Rate
5.6%-51% vs US avg
x
Veterans
5.6%-6% vs US avg
x
Disability
9.8%-27% vs US avg
x
Single Parent
10.1%+25% vs US avg
x
Recent Births
83.3%+1337% vs US avg
x
Top ancestry
GermanNorwegianAmerican

Health & Community Indicators in 57620

Poverty Rate
5.6%-51% vs US avg
x
Veterans
5.6%-6% vs US avg
x
Single Parent
10.1%+25% vs US avg
x
Disability
9.8%-27% vs US avg
x
Uninsured
4.8%-41% vs US avg
x
SNAP Benefits
1.9%-84% vs US avg
x
Private School
0.4%-96% vs US avg
x
Recent Births
83.3%+1337% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population590
Median age46.1
Poverty rate5.6%
Demographics statistics
Demographics
White97.3%
Hispanic0.0%
Black0.0%
Asian0.0%