Miles City is a city located in Custer County, Montana. Miles City has a 2025 population of 8,422 . It is also the county seat of Custer County . Miles City is currently growing at a rate of 0.18% annually and its population has increased by 0.91% since the most recent census, which recorded a population of 8,346 in 2020.
The average household income in Miles City is $77,701 with a poverty rate of 12.66%. The median age in Miles City is 43.1 years: 42.5 years for males, and 45 years for females. For every 100 females there are 105.4 males.
Data after 2023 is projected based on recent change
The racial composition of Miles City includes 90.76% White, and smaller percentages for Native American, Asian, Black or African American, other race, Native Hawaiian or Pacific Islander and multiracial populations.
White (90.76%)
Two or more races (6.36%)
Native American (1.22%)
Asian (0.56%)
Black or African American (0.5%)
Other race (0.45%)
Native Hawaiian or Pacific Islander (0.14%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 7,635 | 90.76% |
| Two or more races | 535 | 6.36% |
| Native American | 103 | 1.22% |
| Asian | 47 | 0.56% |
| Black or African American | 42 | 0.5% |
| Other race | 38 | 0.45% |
| Native Hawaiian or Pacific Islander | 12 | 0.14% |
Married
Widowed
Divorced
Separated
Never Married
Miles City's average per capita income is $40,864. Household income levels show a median of $60,732. The poverty rate stands at 12.66%.
Name | Median | Mean |
|---|---|---|
| Married Families | $92,131 | - |
| Families | $86,855 | $100,489 |
| Households | $60,732 | $77,701 |
| Non Families | $33,173 | $45,119 |
Average Income
Median Household Income
Poverty Rate