Overview
89
Total Population
39.5
Median age
44.94%
Female population %
122.5:100
Gender ratio (M:F)
10-14 years
Largest age group
111.9
Total dependency ratio
White
Largest racial group
43
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Mound City's population is old compared to the rest of the country:
- The median age in Mound City is 39.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Mound City's population under 18 was 21.35%, compared to the 22.51% nationwide.
- Mound City's elderly or the senior population (over 65 age) was 31.46% as compared to 16.04% nationwide.
- Of the total population in Mound City, 21.35% were under the age of 15, 21.35% aged 15 to 29, 25.84% aged 30 to 64, 31.46% aged 65 to 84, and 0.00% were 85 years of age and older.

Read more about Mound City, SD population by age ➔
Gender
There are 9 less females than males in Mound City:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 44.94% females and 55.06% males in Mound City, SD.
- The Mound City, SD gender ratio is 122.5:100 i.e. 122.5 men to 100 women (1.225).
- For male population, the largest age group is 10-14 years with a population of 15.
- For the female population, the largest age group is 15-19 years with a population of 15.

Read more about Mound City, SD population by gender ➔
Race / Ethnicity
Mound City's population is moderately diverse:
- Racial distribution of Mound City population: 88.76% are White, 2.25% are American Indian and Alaska Native and 8.99% are some other race.
- Mound City's racial breakdown clearly shows that there is an absolute majority of White population in the town.
- By ethnicity, 43 is Hispanic or Latino (of any race), and 46 (51.69% of the total population) is Non-Hispanic.
- The largest racial group in Mound City is White with a population of 79 (88.76% of the total population).

Read more about Mound City, SD population by race ➔
Year by year
Mound City's population has already reached its peak and is showing a trend of decline:
- The peak population was 84 in the year 2000
- From 2000 to 2010, Mound City's population decreased by 13 (15.48%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Mound City's population decreased by 4 (5.63%), 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, Mound City's population was lowest in year 2009 at 65.

Read more about Mound City, SD population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
- U.S. Census Bureau Population Estimates Population Estimates Program (PEP)