Custer County Flag

Custer County

State:
Montana
County Seat:
Miles City

Custer County's estimated 2025 population is 11,955 with a growth rate of -0.13% in the past year according to the most recent United States census data. Custer County is the 18th largest county in Montana. The 2010 population was 11,691 and has seen a growth of 2.26% since that time.

11,955
Total Population
3
Population Density (mi²)
18
Population Rank (State)
-15 -0.13%
Annual Population Growth

Custer County Population

Custer County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Custer County includes 91.22% White, and smaller percentages for Native American, other race, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Native American

Other race

Asian

Black or African American

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White10,89091.22%
Two or more races7145.98%
Native American1531.28%
Other race790.66%
Asian480.4%
Black or African American420.35%
Native Hawaiian or Pacific Islander120.1%

Custer County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Custer County's average per capita income is $41,553. Household income levels show a median of $63,585. The poverty rate stands at 11.67%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$95,075-
Families$90,000$105,272
Households$63,585$83,970
Non Families$33,883$48,054

$41,553

Average Income

$63,585

Median Household Income

11.67%

Poverty Rate