Ziebach County, SD Population

Overview

2,479

Total Population

34.5

Median age

50.22%

Female population %

99.1:100

Gender ratio (M:F)

35-39 years

Largest age group

46.9

Total dependency ratio

American Indian and Alaska Native

Largest racial group

132

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Ziebach County is 34.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Ziebach County's population under 18 was 27.71%, compared to the 22.51% nationwide.
Ziebach County's elderly or the senior population (over 65 age) was 10.08% as compared to 16.04% nationwide.
Of the total population in Ziebach County, 21.86% were under the age of 15, 23.92% aged 15 to 29, 44.13% aged 30 to 64, 9.28% aged 65 to 84, and 0.81% were 85 years of age and older.

There are 11 more females than males in Ziebach County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.22% females and 49.78% males in Ziebach County, SD.
The Ziebach County, SD gender ratio is 99.1:100 i.e. 99.1 men to 100 women (0.991).
For male population, the largest age group is 35-39 years with a population of 180.
For the female population, the largest age group is 15-19 years with a population of 136.

Ziebach County's population has become increasingly diverse:

Racial distribution of Ziebach County population: 22.87% are White, 71.60% are American Indian and Alaska Native, 0.24% are Native Hawaiian and other Pacific Islander, 0.48% are some other race and 4.80% are multiracial.
Ziebach County's racial breakdown clearly shows that there is an absolute majority of American Indian and Alaska Native population in the county.
By ethnicity, 132 is Hispanic or Latino (of any race), and 2,347 (94.68% of the total population) is Non-Hispanic.
The largest racial group in Ziebach County is American Indian and Alaska Native with a population of 1,775 (71.60% of the total population).

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

The peak population was 2,879 in the year 2012
From 2000 to 2010, Ziebach County's population increased by 351 (14.18%), as compared to the national growth of 9.63%.
From 2010 to 2020, Ziebach County's population decreased by 434 (15.36%), 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, Ziebach County's population was lowest in year 2020 at 2,392.