Custer County, Montana Population 2024

12,154

Custer County, Montana's estimated 2024 population is 12,154 with a growth rate of 0.5% in the past year according to the most recent United States census data. Custer County, Montana is the 17th largest county in Montana. The 2010 population was 11,691 and has seen a growth of 3.96% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202912,459610.49%
202812,398610.49%
202712,337610.5%
202612,276610.5%
202512,215610.5%
202412,154610.5%
202312,093610.51%
202212,032610.51%
202111,9711080.91%
202011,8635024.42%
201911,361-215-1.86%
201811,576-165-1.41%
201711,741-103-0.87%
201611,844-254-2.1%
201512,098750.62%
201412,0231401.18%
201311,883790.67%
201211,804450.38%
201111,759680.58%
201011,691
199011,697-1,412-10.77%
198013,1099357.68%
197012,174-1,053-7.96%
196013,2275664.47%
195012,6612,23921.48%
194010,422-820-7.29%
193011,242-952-7.81%
192012,194-1,929-13.66%
191014,1236,23278.98%
19007,8912,58348.66%
18905,3082,798111.47%
18802,5102,4726505.26%
187038-12,421-99.69%
showing: 33 rows
2024 Growth Rate
0.5% (61)
County Website
Custer County
State
Montana
County Seat
2010 Population
11,691
Area
3783 mi²
Density
3 people/mi²
Growth Since 2010
3.96% (463)
Founded
February 16, 1877

Custer County, Montana Population 2024

Population by Race

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Race
Population
Percentage (of total)
White10,93491.44%
Two or more races6625.54%
Native American1461.22%
Other race1241.04%
Asian460.38%
Black or African American280.23%
Native Hawaiian or Pacific Islander170.14%
showing: 7 rows

White

Two or more races

Native American

Other race

Asian

Black or African American

Native Hawaiian or Pacific Islander

Custer County, Montana Population by Race

Custer County, Montana Population Pyramid 2024

Custer County, Montana Median Age

42.8

Total

41.2

Male

45.4

Female

Custer County, Montana Adults

There are 9,604 adults, (2,447 of whom are seniors) in Custer County, Montana.

Custer County, Montana Age Dependency

67.1

Age Dependency Ratio

34.2

Old Age Dependency Ratio

32.9

Child Dependency Ratio

Custer County, Montana Sex Ratio

Female5,93349.62%
Male6,02450.38%

Custer County, Montana Population by Age

Custer County, Montana Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All4,9962.367.332.7
Married2,5092.958317
Non Family1,9331.2549.350.7
Female3632.8656.743.3
Male1913.3263.436.6
showing: 5 rows

2.87

Average Family Size

2.3

Average Household Size

67.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Custer County, Montana Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Custer County, Montana Educational Attainment by Sex (over 25)

Custer County, Montana Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among other race people with a rate of 100%.

The highest rate of bachelors degrees is among other race people with a rate of 28.13%.

Custer County, Montana Educational Attainment by Race

All

Male

Female

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$40,283

Average Earnings

$45,665

Average Male

$34,819

Average Female

Custer County, Montana Earnings by Educational Attainment

Custer County, Montana Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Custer County, Montana Language

95.68% of Custer County, Montana residents speak only English, while 4.32% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 2.07% of the population.

Custer County, Montana Language

Custer County, Montana Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White10,3321,11110.75%
Multiple65214722.55%
Hispanic422317.35%
Other12175.79%
showing: 4 rows

11.11%

Overall Poverty Rate

11.7%

Male Poverty Rate

10.51%

Female Poverty Rate

Poverty in Custer County, Montana

The race most likely to be in poverty in Custer County, Montana is Multiple, with 22.55% below the poverty level.

The race least likely to be in poverty in Custer County, Montana is Other, with 5.79% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.24%. Among those working part-time, it was 12.16%, and for those that did not work, the poverty rate was 23.09%.

Custer County, Montana Poverty

rate

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Rate
Poverty
High School16.82%
Less Than 9th Grade15.67%
Some College10.39%
Bachelors or Greater5.95%
showing: 4 rows

Custer County, Montana Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed46.67%
Male Unemployed40%
Female Employed7.28%
Male Employed5.36%
showing: 4 rows

Custer County, Montana Poverty Rate by Employment Status and Sex

Custer County, Montana Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Custer County, Montana Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

52.8%

Overall Marriage Rate

49.8%

Male Marriage Rate

55.8%

Female Marriage Rate

Custer County, Montana Married by Age and Sex

male

female

Custer County, Montana Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

Custer County, Montana Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Custer County, Montana Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,015

Number of Veterans

908

Male Veterans

107

Female Veterans

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Custer County, Montana Veterans by War

count

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Custer County, Montana Veterans by Age

count

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Custer County, Montana Veterans by Race

Custer County, Montana Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.94%

Veteran Poverty Rate

39.27%

Veteran Disability Rate

Custer County, Montana Veterans by Education

LaborForceParticipation

65.2%

Labor Force Participation

63%

Employment Rate

3.3%

Unemployment Rate

Custer County, Montana Employment by Age

LaborForceParticipation

Custer County, Montana Employment by Race

LaborForceParticipation

Custer County, Montana Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

62.39%

Born in Custer County, Montana

98.12%

Native Born

1.88%

Foreign Born

0.58%

Non Citizen

1.3%

Naturalized

Place of Birth

98.12% of Custer County, Montana residents were born in the United States, with 62.39% having been born in Montana. 0.58% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Custer County, Montana Place of Birth

Sources