St. Marie, MT
Population 319 · Montana
About St. Marie, MT
St. Marie is a small community in Montana with a population of 319 residents. The median household income is $38,125 per year, which is below the national average. The median age in St. Marie is 39.3 years.
Housing in St. Marie has a median home value of $0 and median monthly rent of $0. Of the 774 total housing units, the majority are owner-occupied, with 110 owner-occupied and 10 renter-occupied units.
The unemployment rate in St. Marie is 17.4% and the poverty rate is 27.9%. 21.8% of residents hold a bachelor's degree or higher. The average commute time is 0 minutes.
Cost of Living in St. Marie, MT
Compared to national averages, St. Marie has a median household income of $38,125 (49% below the national median of $75,149). Home values average $0, which is 100% below the national median. Monthly rent at $0 is 100% below the US average of $1,163. Within Montana, St. Marie's income is 42% below the state average of $65,821, and home values are 100% below the state median of $288,703.
Why Live in St. Marie, MT?
St. Marie offers affordable housing with a median home value of $0, below the US average of $244,900, and rent that’s lower than the national average at $0/month, and short commute times averaging just 0 minutes.
Potential considerations include median household income ($38,125) that falls below the national average. However, St. Marie’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
St. Marie has a population of 319 with a median age of 39.3 years. Compare St. Marie with other cities to see how it stacks up, or explore all cities in Montana.
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Other Cities in Montana
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about St. Marie
What is the population of St. Marie, MT?
The population of St. Marie, MT is 319 according to the latest Census data.
What is the median household income in St. Marie?
The median household income in St. Marie, MT is $38,125 per year.
What is the median home value in St. Marie?
The median home value in St. Marie, MT is $0.
What is the average rent in St. Marie?
The median monthly rent in St. Marie, MT is $0.
What is the unemployment rate in St. Marie?
The unemployment rate in St. Marie, MT is 17.4%.