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St. Marie CDP, MT

ZIP 59231 — People & Community

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

Working ClassLow Snow Area

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 59231

59231 has a population of 319 with a median age of 39.3 yrs (29.1% male).

Race & Ethnicity
White
55.8%-9% vs US avg
x
Black
0.0%
x
Asian
0.0%
x
Hispanic
0.0%
x
Other / Two+
44.2%
x
Age Groups
0–17
3.1%-86% vs US avg
x
18–64
62.1%+1% vs US avg
x
65+
34.8%+113% vs US avg
x
Education
Less than HS
34.9%+214% vs US avg
x
High school
18.3%-30% vs US avg
x
Some college
25.0%-13% vs US avg
x
Bachelor's+
21.8%-35% vs US avg
x
Marital Status
Married
16.2%-66% vs US avg
x
Never married
55.3%+64% vs US avg
x
Divorced
16.8%+63% vs US avg
x
Widowed / Separated
11.6%
x
Diversity Index
49/100

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

Social & household profile

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

Poverty Rate
27.9%+143% vs US avg
x
Veterans
3.6%-41% vs US avg
x
Disability
33.9%+153% vs US avg
x
Single Parent
0.0%
x
Recent Births
0.0%
x
Top ancestry
GermanNorwegianEuropean

Health & Community Indicators in 59231

Poverty Rate
27.9%+143% vs US avg
x
Veterans
3.6%-41% vs US avg
x
Single Parent
0.0%
x
Disability
33.9%+153% vs US avg
x
Uninsured
16.6%+108% vs US avg
x
SNAP Benefits
10.8%-7% vs US avg
x
Private School
0.0%
x
Recent Births
0.0%
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population319
Median age39.3
Poverty rate27.9%
Demographics statistics
Demographics
White55.8%
Hispanic0.0%
Black0.0%
Asian0.0%