Sioux County, ND Population

Overview

3,993

Total Population

27.1

Median age

50.04%

Female population %

99.8:100

Gender ratio (M:F)

10-14 years

Largest age group

62.5

Total dependency ratio

American Indian and Alaska Native

Largest racial group

44

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Sioux County is 27.1, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Sioux County's population under 18 was 36.84%, compared to the 22.51% nationwide.
Sioux County's elderly or the senior population (over 65 age) was 8.04% as compared to 16.04% nationwide.
Of the total population in Sioux County, 30.43% were under the age of 15, 22.59% aged 15 to 29, 38.94% aged 30 to 64, 7.81% aged 65 to 84, and 0.23% were 85 years of age and older.

There are 3 more females than males in Sioux County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.04% females and 49.96% males in Sioux County, ND.
The Sioux County, ND gender ratio is 99.8:100 i.e. 99.8 men to 100 women (0.998).
For male population, the largest age group is 10-14 years with a population of 280.
For the female population, the largest age group is 10-14 years with a population of 230.

Sioux County's population has become increasingly diverse:

Racial distribution of Sioux County population: 11.19% are White, 0.23% are Black or African American, 85.70% are American Indian and Alaska Native, 0.23% are some other race and 2.65% are multiracial.
Sioux County's racial breakdown clearly shows that there is an absolute majority of American Indian and Alaska Native population in the county.
By ethnicity, 44 is Hispanic or Latino (of any race), and 3,949 (98.90% of the total population) is Non-Hispanic.
The largest racial group in Sioux County is American Indian and Alaska Native with a population of 3,422 (85.70% of the total population).

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

The peak population was 4,467 in the year 2014
From 2000 to 2010, Sioux County's population increased by 61 (1.49%), as compared to the national growth of 9.63%.
From 2010 to 2020, Sioux County's population decreased by 266 (6.41%), 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, Sioux County's population was lowest in year 2022 at 3,711.