Population 3,720 · Census ACS 2020–24
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Population and households in Sweet Grass County
Household size in Sweet Grass County
| Period | Sweet Grass County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 2.42 | 2.41 | 2.68 |
| 2010–14 | 2.60 | 2.45 | 2.73 |
| 2015–19 | 2.35 | 2.44 | 2.71 |
| 2020–24 | 2.44 | 2.44 | 2.65 |
| Change | +0.01 | +0.03 | −0.03 |
The average household in Sweet Grass County has 2.44 people, under the U.S. average of 2.65. The picture is much the same across Montana.
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 Sweet Grass County
| Period | Sweet Grass County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 45.6 | 39.9 | 37.7 |
| 2010–14 | 45.0 | 40.8 | 38.6 |
| 2015–19 | 50.9 | 41.5 | 39.6 |
| 2020–24 | 46.6 | 41.5 | 40.1 |
| Change | +1.0 | +1.6 | +2.3 |
Sweet Grass County skews older: half of its residents are older than 46.6, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. Since 2006–10, the median age has climbed from 45.6, but in a place this small, much of that may be survey noise rather than real change.
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 Sweet Grass County
| Period | Sweet Grass County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 3.3% | 9.4% | 12.3% |
| 2010–14 | 4.9% | 9.8% | 12.3% |
| 2015–19 | 5.2% | 8.7% | 11.6% |
| 2020–24 | 7.7% | 8.8% | 11.6% |
| Change | +4.4 pts | −0.6 pts | −0.6 pts |
Single-parent households are relatively rare in Sweet Grass County: 7.7% of households, against 11.6% nationally.
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 Sweet Grass County
Renters in Sweet Grass County
| Period | Sweet Grass County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 18.7% | 31.0% | 33.3% |
| 2010–14 | 27.2% | 32.3% | 35.6% |
| 2015–19 | 27.6% | 31.9% | 36.0% |
| 2020–24 | 20.3% | 30.8% | 34.8% |
| Change | +1.6 pts | −0.1 pts | +1.5 pts |
Only 20.3% of households in Sweet Grass County rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Just over half of owners (53.3%) have paid off their mortgages, well above the national share of 39.8%. Sweet Grass County has a lower share of renters than the great majority of Montana counties.
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 Sweet Grass County
| Period | Sweet Grass County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 33.3% | 13.2% | 11.4% |
| 2010–14 | 30.4% | 13.9% | 11.4% |
| 2015–19 | 27.4% | 14.1% | 11.1% |
| 2020–24 | 16.2% | 12.2% | 9.6% |
| Change | −17.1 pts | −0.9 pts | −1.8 pts |
Vacancy is high in Sweet Grass County: 16.2% 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. Compared with other Montana counties, though, Sweet Grass County has a lower vacancy rate than most.
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 Sweet Grass County
| Period | Sweet Grass County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 1967 | 1974 | 1974 |
| 2010–14 | 1975 | 1977 | 1975 |
| 2015–19 | 1979 | 1978 | 1977 |
| 2020–24 | 1979 | 1982 | 1980 |
| Change | +12 | +7 | +6 |
Homes in Sweet Grass County are about the same age as the nation's housing: the median home was built in 1979, versus 1980 nationally. Sweet Grass County has newer homes than most Montana counties.
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 Sweet Grass County
| Period | Sweet Grass County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | $538 | $703 | $965 |
| 2010–14 | $682 | $775 | $1,040 |
| 2015–19 | $724 | $870 | $1,213 |
| 2020–24 | $1,218 | $1,189 | $1,571 |
| Change | +$680 | +$487 | +$606 |
Rent in Sweet Grass County runs $1,218 a month at the median, utilities included, well below the U.S. median of $1,571. That is in line with the rest of Montana. The typical renter here spends 27.1% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 Sweet Grass County
Bachelor's degrees in Sweet Grass County
| Period | Sweet Grass County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 28.3% | 28.7% | 28.4% |
| 2010–14 | 27.3% | 29.8% | 29.6% |
| 2015–19 | 24.9% | 32.2% | 32.1% |
| 2020–24 | 24.4% | 35.3% | 35.6% |
| Change | −4.0 pts | +6.6 pts | +7.2 pts |
Fewer adults in Sweet Grass County have a four-year degree than in the country as a whole: 24.4%, 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 Sweet Grass County
| Period | Sweet Grass County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 93.2% | 91.2% | 84.9% |
| 2010–14 | 93.4% | 92.6% | 86.1% |
| 2015–19 | 94.7% | 93.6% | 87.7% |
| 2020–24 | 97.4% | 94.6% | 89.3% |
| Change | +4.2 pts | +3.4 pts | +4.3 pts |
Finishing high school is nearly universal in Sweet Grass County: 97.4% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Only three of Montana's 56 counties have a higher share of high school graduates.
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 Sweet Grass County
| Period | Sweet Grass County | Montana | U.S. |
|---|---|---|---|
| 2006–10 | 4.4% | 5.7% | 8.1% |
| 2010–14 | 3.4% | 6.9% | 9.4% |
| 2015–19 | 0.9% | 4.2% | 5.6% |
| 2020–24 | 1.9% | 3.7% | 5.4% |
| Change | −2.4 pts | −2.0 pts | −2.7 pts |
Unemployment in Sweet Grass County has been low: just 1.9% of the labor force was out of work and looking, well below the national rate of 5.4%. 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).
Sweet Grass County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Sweet Grass County | 2.44 | 46.6 | 7.7% | 20.3% | 16.2% | 1979 | $1,218 | 24.4% | 97.4% | 1.9% |
| Stillwater County | 2.43 | 46.6 | 5.0% | 17.1% | 15.5% | 1986 | $1,036 | 31.9% | 95.4% | 3.0% |
| Park County | 2.15 | 46.7 | 10.3% | 30.6% | 11.2% | 1977 | $1,205 | 39.5% | 96.1% | 2.6% |
| Golden Valley County | 2.32 | 50.9 | 3.5% | 18.9% | 22.0% | 1974 | $783 | 20.9% | 86.5% | 1.5% |
| Carbon County | 2.39 | 52.1 | 5.9% | 22.0% | 24.6% | 1977 | $1,072 | 34.8% | 96.3% | 4.8% |
| Gallatin County | 2.36 | 36.0 | 5.7% | 38.9% | 10.0% | 1996 | $1,744 | 54.6% | 97.2% | 2.4% |
| Yellowstone County | 2.42 | 39.4 | 10.1% | 30.4% | 7.0% | 1983 | $1,287 | 33.6% | 95.4% | 3.4% |
| Broadwater County | 2.79 | 46.0 | 5.1% | 12.2% | 12.8% | 1999 | $1,054 | 27.0% | 92.3% | 2.4% |
| Madison County | 2.44 | 50.6 | 2.5% | 19.0% | 37.0% | 1995 | $1,165 | 32.7% | 93.6% | 3.0% |
| Jefferson County | 2.54 | 45.5 | 6.2% | 15.8% | 6.6% | 1988 | $1,009 | 33.6% | 94.5% | 4.5% |
| Big Horn County | 3.47 | 33.2 | 20.2% | 33.3% | 14.4% | 1975 | $599 | 17.3% | 89.4% | 14.6% |
All figures 2020–24.
Counties with similar populations: Bleckley County, GA · Webster County, NE · Webster County, MS · Webster County, GA · Wayne County, UT · Wahkiakum County, WA · Wabaunsee County, KS · Vinton County, OH · Borden County, TX · Bollinger County, MO
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 Sweet Grass County. 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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