Custer County, MT Population

Overview

11,968

Total Population

43.0

Median age

49.91%

Female population %

100.4:100

Gender ratio (M:F)

60-64 years

Largest age group

57.9

Total dependency ratio

White

Largest racial group

433

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Custer County's population is old compared to the rest of the country:

The median age in Custer County is 43.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Custer County's population under 18 was 20.25%, compared to the 22.51% nationwide.
Custer County's elderly or the senior population (over 65 age) was 20.23% as compared to 16.04% nationwide.
Of the total population in Custer County, 16.45% were under the age of 15, 17.81% aged 15 to 29, 45.50% aged 30 to 64, 18.11% aged 65 to 84, and 2.12% were 85 years of age and older.

There are 22 less females than males in Custer County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.91% females and 50.09% males in Custer County, MT.
The Custer County, MT gender ratio is 100.4:100 i.e. 100.4 men to 100 women (1.004).
For male population, the largest age group is 60-64 years with a population of 487.
For the female population, the largest age group is 65-69 years with a population of 454.

Custer County's population has become increasingly diverse:

Racial distribution of Custer County population: 92.44% are White, 0.76% are Black or African American, 0.81% are American Indian and Alaska Native, 0.25% are Asian, 0.34% are Native Hawaiian and other Pacific Islander, 1.25% are some other race and 4.14% are multiracial.
Custer County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 433 is Hispanic or Latino (of any race), and 11,535 (96.38% of the total population) is Non-Hispanic.
The largest racial group in Custer County is White with a population of 11,063 (92.44% of the total population).

Custer County's population has already reached its peak and is showing a trend of decline:

The peak population was 12,098 in the year 2015
From 2000 to 2010, Custer County's population increased by 29 (0.25%), as compared to the national growth of 9.63%.
From 2010 to 2020, Custer County's population increased by 172 (1.47%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Custer County's population was lowest in year 2006 at 11,139.