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St. Mary, MT
Census-designated place in Glacier County, Montana.
Population
193
Land area
0.8sq mi
People per sq mi
256
ZIP codes
0
St. Mary and its ZIP codes
St. Mary at a glance
- St. Mary is about 33 times as dense as Montana as a whole.
Local data for St. Mary, MT
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for Glacier County. PPP loans are for St. Mary.
Unemployment rate
5.0%
Aug 2026, +0.3 pts in a year
Average annual pay
$53,756
4,214 jobs, 2025
Income per person
$49,371
BEA, 2024
Federal spending
$193M
FY 2026, $13,982 per person
Environment and hazard risk
St. Mary, MT, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: cold wave
Storm events since 1996
504
Countywide, mostly high wind
Flood insurance policies
1
0.0% of homes, county
July high / Jan low
73° / 15°F
26.1 inches of rain a year
Hazards, floods and storm historyCheck a flood zone1 historic places
Cities near St. Mary
| Name | Distance | Land area (sq mi) |
|---|---|---|
| BabbCensus-designated place | 9.4 mi | 9.5 |
| Starr SchoolCensus-designated place | 16 mi | 4.2 |
| North BrowningCensus-designated place | 22 mi | 2.9 |
| East Glacier Park VillageCensus-designated place | 22 mi | 4.4 |
| BrowningCensus-designated place | 23 mi | 0.3 |
| South BrowningCensus-designated place | 23 mi | 2.3 |
| BlackfootCensus-designated place | 28 mi | 0.3 |
| PinnacleCensus-designated place | 29 mi | 0.6 |
Frequently asked questions
- What county is St. Mary, MT in?
- St. Mary is in Glacier County, Montana.
- What is the population of St. Mary, MT?
- About 193 people live in St. Mary, based on American Community Survey 5-year estimates.
- What cities are near St. Mary?
- Nearby places include Babb (9.4 mi), Starr School (16 mi), North Browning (22 mi), East Glacier Park Village (22 mi), Browning (23 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023