Roosevelt County, MT Population

Overview

10,884

Total Population

30.3

Median age

49.99%

Female population %

1:100

Gender ratio (M:F)

5-9 years

Largest age group

66.9

Total dependency ratio

American Indian and Alaska Native

Largest racial group

382

Hispanic population

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

TABLE OF CONTENTS

Age

Roosevelt County's population is young compared to the rest of the country:

The median age in Roosevelt County is 30.3, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Roosevelt County's population under 18 was 34.06%, compared to the 22.51% nationwide.
Roosevelt County's elderly or the senior population (over 65 age) was 11.32% as compared to 16.04% nationwide.
Of the total population in Roosevelt County, 28.78% were under the age of 15, 20.74% aged 15 to 29, 39.17% aged 30 to 64, 10.24% aged 65 to 84, and 1.07% were 85 years of age and older.

There are 2 less females than males in Roosevelt County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.99% females and 50.01% males in Roosevelt County, MT.
The Roosevelt County, MT gender ratio is 1:100 i.e. 1 men to 100 women (1.000).
For male population, the largest age group is 10-14 years with a population of 610.
For the female population, the largest age group is 5-9 years with a population of 598.

Roosevelt County's population has become increasingly diverse:

Racial distribution of Roosevelt County population: 33.88% are White, 0.22% are Black or African American, 59.67% are American Indian and Alaska Native, 0.75% are Asian, 0.01% are Native Hawaiian and other Pacific Islander, 0.28% are some other race and 5.18% are multiracial.
Roosevelt County's racial breakdown clearly shows that there is an absolute majority of American Indian and Alaska Native population in the county.
By ethnicity, 382 is Hispanic or Latino (of any race), and 10,502 (96.49% of the total population) is Non-Hispanic.
The largest racial group in Roosevelt County is American Indian and Alaska Native with a population of 6,494 (59.67% of the total population).

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

The peak population was 11,416 in the year 2015
From 2000 to 2010, Roosevelt County's population decreased by 151 (1.43%), as compared to the national growth of 9.63%.
From 2010 to 2020, Roosevelt County's population increased by 350 (3.35%), 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, Roosevelt County's population was lowest in year 2008 at 10,129.