Sweet Grass County's estimated 2026 population is 3,706 with a growth rate of -1.49% in the past year according to the most recent United States census data. Sweet Grass County is the 39th largest county in Montana. The 2010 population was 3,617 and has seen a growth of 2.46% since that time.
Data after 2023 is projected based on recent change
Overall: 47 years
Female: 47.6 years
Male: 46.8 years
There are 2,974 adults, (959 of whom are seniors) in Sweet Grass County.
Female: 1,850 (49.7%)
Male: 1,870 (50.3%)
The racial composition of Sweet Grass County includes 90.75% White, and smaller percentages for Native American, other race, Black or African American, Asian and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 3,376 | 90.75% |
| Two or more races | 178 | 4.78% |
| Native American | 63 | 1.69% |
| Other race | 57 | 1.53% |
| Black or African American | 39 | 1.05% |
| Asian | 7 | 0.19% |
Sweet Grass County's average per capita income is $47,661. Household income levels show a median of $77,000. The poverty rate stands at 7.86%.
Name | Median | Mean |
|---|---|---|
| Married Families | $95,764 | - |
| Families | $92,300 | $124,026 |
| Households | $77,000 | $102,866 |
| Non Families | $40,000 | $55,128 |
Average Income
Median Household Income
Poverty Rate