Data / Population / Mellette County

Population in Mellette County

Population in Mellette County was 2,137 in 2025, according to the U.S. Census Bureau. That is up 4.3% from 2024. That is the 58th highest of 66 counties in 2025.

2025, persons2,137
Change on 2024+4.3%
Rank58th of 66Counties in South Dakota ranked
Series high2,1372025
Series low1,8662022

Population in Mellette County, 2020 to 2025

CSVChart (SVG)

1,8001,9002,0002,1002,2002020202120222023202420252020: 1,917 persons2021: 1,897 persons2022: 1,866 persons2023: 1,914 persons2024: 2,049 persons2025: 2,137 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
20252,137
20242,049
20231,914
20221,866
20211,897
20201,917

Compared with South Dakota and United States

Place2025
Mellette County2,137
South Dakota935,094
United States341,784,857

Rankings

Definition

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

What is the population in Mellette County?

Population in Mellette County was 2,137 in 2025, according to the U.S. Census Bureau. That is up 4.3% from 2024. That is the 58th highest of 66 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved by Invokely on 2026-10-08.

What was the highest population in Mellette County?

2,137 in 2025, the highest value since 2020 in this series.

More statistics for Mellette County

All statistics for Mellette County