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Mound City town, SD

ZIP 57646 — People & Community

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

Low Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 57646

57646 has a population of 248 with a median age of 37.6 yrs (47.6% male).

Race & Ethnicity
White
87.9%+43% vs US avg
x
Black
0.0%
x
Asian
0.0%
x
Hispanic
16.1%-14% vs US avg
x
Age Groups
0–17
29.4%+34% vs US avg
x
18–64
52.4%-15% vs US avg
x
65+
18.1%+11% vs US avg
x
Education
Less than HS
4.9%-56% vs US avg
x
High school
22.1%-16% vs US avg
x
Some college
30.7%+6% vs US avg
x
Bachelor's+
42.3%+26% vs US avg
x
Marital Status
Married
79.2%+65% vs US avg
x
Never married
12.9%-62% vs US avg
x
Divorced
4.5%-56% vs US avg
x
Widowed / Separated
3.4%
x
Diversity Index
20/100

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

Social & household profile

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

Poverty Rate
14.5%+26% vs US avg
x
Foreign Born
100.0%+619% vs US avg
x
Veterans
4.0%-33% vs US avg
x
Disability
6.5%-52% vs US avg
x
Single Parent
0.0%
x
Top ancestry
GermanRussianFrench

Health & Community Indicators in 57646

Poverty Rate
14.5%+26% vs US avg
x
Veterans
4.0%-33% vs US avg
x
Foreign Born
100.0%+619% vs US avg
x
Single Parent
0.0%
x
Disability
6.5%-52% vs US avg
x
Uninsured
3.6%-55% vs US avg
x
SNAP Benefits
5.7%-52% vs US avg
x
Private School
0.0%
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population248
Median age37.6
Poverty rate14.5%
Demographics statistics
Demographics
White87.9%
Hispanic16.1%
Black0.0%
Asian0.0%
Foreign-born100.0%