Custer is a CDP located in Yellowstone County, Montana. Custer has a 2025 population of 143 . Custer is currently declining at a rate of -0.69% annually and its population has decreased by -5.3% since the most recent census, which recorded a population of 151 in 2020.
The average household income in Custer is $79,370 with a poverty rate of 18.06%. The median age in Custer is 59.5 years: 59.3 years for males, and 60.2 years for females. For every 100 females there are 86.7 males.
Data after 2023 is projected based on recent change
The racial composition of Custer includes 96.13% White, and smaller percentages for and multiracial populations.
White (96.13%)
Two or more races (3.87%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 149 | 96.13% |
| Two or more races | 6 | 3.87% |
Married
Widowed
Divorced
Separated
Never Married
Custer's average per capita income is $38,125. Household income levels show a median of $70,000. The poverty rate stands at 18.06%.
Name | Median | Mean |
|---|---|---|
| Families | $125,625 | $120,204 |
| Married Families | $121,250 | - |
| Households | $70,000 | $79,370 |
| Non Families | - | $58,570 |
Average Income
Median Household Income
Poverty Rate