Population 435 · Census ACS 2020–24
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Population and households in ZIP 59231
Household size in ZIP 59231
| Period | ZIP 59231 | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 1.94 | 2.41 | 2.68 |
| 2010–14 | 2.24 | 2.45 | 2.73 |
| 2015–19 | 2.14 | 2.44 | 2.71 |
| 2020–24 | 2.79 | 2.44 | 2.65 |
| Change | +0.85 | +0.03 | −0.03 |
Households in ZIP 59231 average 2.79 people, a bit above the national 2.65, so families with children are somewhat more common here. Since 2006–10, household size has climbed from 1.94, 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 ZIP 59231
| Period | ZIP 59231 | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 55.4 | 39.9 | 37.7 |
| 2010–14 | 50.3 | 40.8 | 38.6 |
| 2015–19 | 50.5 | 41.5 | 39.6 |
| 2020–24 | 40.2 | 41.5 | 40.1 |
| Change | −15.2 | +1.6 | +2.3 |
Half of the people in ZIP 59231 are younger than 40.2 and half are older, close to the national median of 40.1.
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 ZIP 59231
| Period | ZIP 59231 | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 5.0% | 9.4% | 12.3% |
| 2010–14 | 2.5% | 9.8% | 12.3% |
| 2015–19 | 2.4% | 8.7% | 11.6% |
| 2020–24 | 3.4% | 8.8% | 11.6% |
| Change | −1.6 pts | −0.6 pts | −0.6 pts |
Single parents head only 3.4% of households in ZIP 59231, 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 ZIP 59231
Renters in ZIP 59231
| Period | ZIP 59231 | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 15.2% | 31.0% | 33.3% |
| 2010–14 | 17.7% | 32.3% | 35.6% |
| 2015–19 | 14.9% | 31.9% | 36.0% |
| 2020–24 | 13.7% | 30.8% | 34.8% |
| Change | −1.5 pts | −0.1 pts | +1.5 pts |
ZIP 59231 is overwhelmingly a place of homeowners: only 13.7% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. About three-quarters of owners (75.5%) 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 ZIP 59231
| Period | ZIP 59231 | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 70.3% | 13.2% | 11.4% |
| 2010–14 | 69.4% | 13.9% | 11.4% |
| 2015–19 | 59.5% | 14.1% | 11.1% |
| 2020–24 | 67.3% | 12.2% | 9.6% |
| Change | −3.0 pts | −0.9 pts | −1.8 pts |
Vacancy is high in ZIP 59231: 67.3% 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 ZIP 59231
| Period | ZIP 59231 | 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 ZIP 59231 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 ZIP 59231
| Period | ZIP 59231 | Montana | U.S. |
|---|---|---|---|
| 2006–10 | $492 | $703 | $965 |
| 2010–14 | $543 | $775 | $1,040 |
| 2015–19 | $970 | $870 | $1,213 |
| 2020–24 | $1,175 | $1,189 | $1,571 |
| Change | +$683 | +$487 | +$606 |
Rent in ZIP 59231 runs $1,175 a month at the median, utilities included, well below the U.S. median of $1,571. Montana as a whole looks much the same. The typical renter here spends 44.1% 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 ZIP 59231
Bachelor's degrees in ZIP 59231
| Period | ZIP 59231 | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 12.4% | 28.7% | 28.4% |
| 2010–14 | 18.6% | 29.8% | 29.6% |
| 2015–19 | 13.7% | 32.2% | 32.1% |
| 2020–24 | 18.8% | 35.3% | 35.6% |
| Change | +6.4 pts | +6.6 pts | +7.2 pts |
College degrees are relatively uncommon in ZIP 59231: 18.8% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%.
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 ZIP 59231
| Period | ZIP 59231 | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 86.9% | 91.2% | 84.9% |
| 2010–14 | 87.3% | 92.6% | 86.1% |
| 2015–19 | 90.8% | 93.6% | 87.7% |
| 2020–24 | 85.2% | 94.6% | 89.3% |
| Change | −1.7 pts | +3.4 pts | +4.3 pts |
About one in seven adults in ZIP 59231 never finished high school, more than nationally: 85.2% 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 ZIP 59231
| Period | ZIP 59231 | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 5.7% | 5.7% | 8.1% |
| 2010–14 | 10.0% | 6.9% | 9.4% |
| 2015–19 | 3.6% | 4.2% | 5.6% |
| 2020–24 | 4.4% | 3.7% | 5.4% |
| Change | −1.3 pts | −2.0 pts | −2.7 pts |
Unemployment in ZIP 59231 runs below the national rate: 4.4% of the labor force was out of work and looking, against 5.4% nationally. Montana as a whole looks much the same. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's 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).
ZIP 59231 compared with nearby ZIP codes
| ZIP code | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| ZIP 59231 | 2.79 | 40.2 | 3.4% | 13.7% | 67.3% | 1966 | $1,175 | 18.8% | 85.2% | 4.4% |
| ZIP 59241 | 2.46 | 47.8 | 0.7% | 20.3% | 33.1% | 1961 | $598 | 29.0% | 97.2% | 3.0% |
| ZIP 59261 | 2.32 | 47.3 | 4.4% | 21.5% | 35.2% | 1976 | $444 | 22.2% | 95.2% | 3.8% |
| ZIP 59538 | 2.39 | 46.1 | 10.8% | 30.2% | 16.9% | 1972 | $571 | 26.8% | 95.0% | 1.1% |
| ZIP 59258 | 2.56 | 46.7 | 4.2% | 23.7% | 31.3% | 1967 | $904 | 24.6% | 93.5% | 2.7% |
| ZIP 59242 | 2.45 | 48.4 | 3.0% | 23.8% | 32.5% | 1965 | $957 | 23.8% | 94.0% | 1.9% |
| ZIP 59247 | 2.37 | 49.4 | 2.1% | 23.9% | 33.3% | 1964 | $994 | 23.6% | 94.6% | 1.2% |
| ZIP 59226 | 3.38 | 28.2 | 9.7% | 16.4% | 27.0% | 1982 | $740 | 40.5% | 97.2% | 2.2% |
| ZIP 59526 | 3.12 | 31.8 | 28.1% | 41.1% | 18.1% | 1971 | $559 | 16.0% | 89.0% | 25.2% |
| ZIP 59219 | 2.37 | 49.4 | 2.1% | 23.9% | 33.3% | 1964 | $994 | 23.6% | 94.6% | 1.2% |
| ZIP 59523 | 2.52 | 43.2 | 9.0% | 25.9% | 20.7% | 1956 | $858 | 34.1% | 95.1% | 3.4% |
All figures 2020–24.
Zip codes with similar populations: 59926, MT · 57312, SD · 57330, SD · 57342, SD · 57522, SD · 58071, ND · 58276, ND · 58357, ND · 58736, ND · 58853, ND
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 ZIP 59231. 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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