Population 453 · Census ACS 2020–24
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Population and households in St. Marie
Household size in St. Marie
| Period | St. Marie | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 1.96 | 2.41 | 2.68 |
| 2010–14 | 2.26 | 2.45 | 2.73 |
| 2015–19 | 2.16 | 2.44 | 2.71 |
| 2020–24 | 2.80 | 2.44 | 2.65 |
| Change | +0.84 | +0.03 | −0.03 |
Households in St. Marie average 2.80 people, a bit above the national 2.65, so families with children are somewhat more common here. Household size has climbed from 1.96 in 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in St. Marie
| Period | St. Marie | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 54.9 | 39.9 | 37.7 |
| 2010–14 | 49.9 | 40.8 | 38.6 |
| 2015–19 | 50.1 | 41.5 | 39.6 |
| 2020–24 | 40.1 | 41.5 | 40.1 |
| Change | −14.8 | +1.6 | +2.3 |
At 40.1, the median age in St. Marie is the same as the national median, so its age mix looks much like the country's.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in St. Marie
| Period | St. Marie | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 5.1% | 9.4% | 12.3% |
| 2010–14 | 2.6% | 9.8% | 12.3% |
| 2015–19 | 2.7% | 8.7% | 11.6% |
| 2020–24 | 3.7% | 8.8% | 11.6% |
| Change | −1.4 pts | −0.6 pts | −0.6 pts |
Single parents head only 3.7% of households in St. Marie, well below the national share of 11.6%.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in St. Marie
Renters in St. Marie
| Period | St. Marie | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 15.5% | 31.0% | 33.3% |
| 2010–14 | 18.0% | 32.3% | 35.6% |
| 2015–19 | 15.3% | 31.9% | 36.0% |
| 2020–24 | 14.0% | 30.8% | 34.8% |
| Change | −1.6 pts | −0.1 pts | +1.5 pts |
Only 14.0% of households in St. Marie rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About three-quarters of owners (75.6%) have paid off their mortgages, well above the national share of 39.8%.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in St. Marie
| Period | St. Marie | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 69.4% | 13.2% | 11.4% |
| 2010–14 | 68.4% | 13.9% | 11.4% |
| 2015–19 | 59.0% | 14.1% | 11.1% |
| 2020–24 | 66.4% | 12.2% | 9.6% |
| Change | −3.0 pts | −0.9 pts | −1.8 pts |
Vacancy is high in St. Marie: 66.4% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in St. Marie
| Period | St. Marie | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 1965 | 1974 | 1974 |
| 2010–14 | 1965 | 1977 | 1975 |
| 2015–19 | 1963 | 1978 | 1977 |
| 2020–24 | 1966 | 1982 | 1980 |
| Change | +1 | +7 | +6 |
The housing in St. Marie is old by national standards: the median home dates to 1966, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in St. Marie
| Period | St. Marie | Montana | U.S. |
|---|---|---|---|
| 2006–10 | $490 | $703 | $965 |
| 2010–14 | $540 | $775 | $1,040 |
| 2015–19 | $959 | $870 | $1,213 |
| 2020–24 | $1,161 | $1,189 | $1,571 |
| Change | +$671 | +$487 | +$606 |
The median renter in St. Marie pays $1,161 a month for rent and utilities, well below the national median of $1,571. The picture is much the same across Montana. The typical renter here spends 43.6% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in St. Marie
Bachelor's degrees in St. Marie
| Period | St. Marie | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 12.6% | 28.7% | 28.4% |
| 2010–14 | 18.6% | 29.8% | 29.6% |
| 2015–19 | 13.8% | 32.2% | 32.1% |
| 2020–24 | 18.8% | 35.3% | 35.6% |
| Change | +6.3 pts | +6.6 pts | +7.2 pts |
Fewer adults in St. Marie have a four-year degree than in the country as a whole: 18.8%, against 35.6% nationally.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in St. Marie
| Period | St. Marie | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 86.9% | 91.2% | 84.9% |
| 2010–14 | 87.4% | 92.6% | 86.1% |
| 2015–19 | 90.7% | 93.6% | 87.7% |
| 2020–24 | 85.4% | 94.6% | 89.3% |
| Change | −1.5 pts | +3.4 pts | +4.3 pts |
About one in seven adults in St. Marie never finished high school, more than nationally: 85.4% have a diploma or equivalent, against 89.3% across the U.S.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in St. Marie
| Period | St. Marie | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 5.7% | 5.7% | 8.1% |
| 2010–14 | 10.0% | 6.9% | 9.4% |
| 2015–19 | 3.8% | 4.2% | 5.6% |
| 2020–24 | 4.5% | 3.7% | 5.4% |
| Change | −1.2 pts | −2.0 pts | −2.7 pts |
Jobs have been a little easier to find in St. Marie than nationally: unemployment was 4.5%, against 5.4%. Still, the rate is higher than in Montana overall (3.7%). Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
St. Marie compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| St. Marie | 2.80 | 40.1 | 3.7% | 14.0% | 66.4% | 1966 | $1,161 | 18.8% | 85.4% | 4.5% |
| Vandalia | 2.79 | 40.2 | 3.4% | 13.7% | 67.3% | 1966 | $1,175 | 18.8% | 85.2% | 4.4% |
| Glasgow | 2.36 | 46.9 | 11.9% | 24.3% | 16.5% | 1964 | $832 | 27.1% | 94.9% | 1.5% |
| Larslan | 3.37 | 36.6 | 14.3% | 27.5% | 21.5% | 1971 | $470 | 18.2% | 94.2% | 9.4% |
| Tampico | 2.75 | 48.8 | 1.1% | 6.1% | 47.0% | 1971 | $783 | 34.9% | 97.3% | 2.2% |
| Nashua | 2.61 | 45.0 | 2.7% | 11.7% | 29.6% | 1970 | $793 | 28.3% | 97.6% | 4.2% |
| Hinsdale | 2.47 | 47.3 | 0.8% | 20.2% | 35.1% | 1961 | $635 | 28.3% | 96.4% | 3.1% |
| Lustre | 3.45 | 35.8 | 15.4% | 28.1% | 20.9% | 1972 | $463 | 17.6% | 94.0% | 9.9% |
| Richland | 2.50 | 45.9 | 3.6% | 22.1% | 30.3% | 1960 | $547 | 24.5% | 95.6% | 4.1% |
| Frazer | 3.45 | 35.8 | 15.4% | 28.1% | 20.9% | 1972 | $463 | 17.6% | 94.0% | 9.9% |
| Glentana | 2.29 | 48.1 | 1.1% | 21.4% | 32.4% | 1957 | $565 | 26.0% | 95.9% | 2.8% |
All figures 2020–24.
Cities with similar populations: Kramer, NE · Slocomb, NC · Slate, WV · Skedee, OK · Skaneateles Falls, NY · Simpsons, VA · Sheffield, VT · Saunemin, IL · Lydia, LA · Lucan, MN
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up St. Marie. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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