Mellette County, SD Population

Overview

1,916

Total Population

35.1

Median age

50.84%

Female population %

96.7:100

Gender ratio (M:F)

10-14 years

Largest age group

70.6

Total dependency ratio

American Indian and Alaska Native

Largest racial group

5

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Mellette County is 35.1, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Mellette County's population under 18 was 29.85%, compared to the 22.51% nationwide.
Mellette County's elderly or the senior population (over 65 age) was 15.03% as compared to 16.04% nationwide.
Of the total population in Mellette County, 26.36% were under the age of 15, 16.75% aged 15 to 29, 41.86% aged 30 to 64, 13.99% aged 65 to 84, and 1.04% were 85 years of age and older.

There are 32 more females than males in Mellette County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.84% females and 49.16% males in Mellette County, SD.
The Mellette County, SD gender ratio is 96.7:100 i.e. 96.7 men to 100 women (0.967).
For male population, the largest age group is 10-14 years with a population of 99.
For the female population, the largest age group is 10-14 years with a population of 125.

Mellette County's population has become increasingly diverse:

Racial distribution of Mellette County population: 35.28% are White, 0.21% are Black or African American, 62.73% are American Indian and Alaska Native, 0.26% are Native Hawaiian and other Pacific Islander and 1.51% are multiracial.
Mellette County's racial breakdown clearly shows that there is an absolute majority of American Indian and Alaska Native population in the county.
By ethnicity, 5 is Hispanic or Latino (of any race), and 1,911 (99.74% of the total population) is Non-Hispanic.
The largest racial group in Mellette County is American Indian and Alaska Native with a population of 1,202 (62.73% of the total population).

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

The peak population was 2,085 in the year 2000
From 2000 to 2010, Mellette County's population decreased by 59 (2.83%), as compared to the national growth of 9.63%.
From 2010 to 2020, Mellette County's population decreased by 105 (5.18%), 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, Mellette County's population was lowest in year 2022 at 1,892.