South Dakota at a glance
South Dakota had an estimated 935,094 residents on July 1, 2025, the 46th largest population among the 50 states and the District of Columbia.
That is up 5.5% from 886,656 in April 2020.
In the year to July 1, 2025, South Dakota gained 2,169 residents from other states through migration and gained 3,183 through international migration.
The same year saw 11,299 births and 8,694 deaths, a natural increase of 2,605.
The capital of South Dakota is Pierre.
South Dakota covers 75,808 square miles of land in 66 counties, about 12 people per square mile.
| Capital | Pierre |
|---|---|
| Population (2025) | 935,094 |
| Change since April 2020 | +48,438 |
| Land area | 75,808 sq mi |
| Counties | 66 |
The July 1 estimate rose from 887,808 in 2020 to 935,094 in 2025. The largest one-year gain was 12,853 people, in the year to July 1, 2022. On average it changed by +9,457 people a year.
Show the numbers
| Year | Population | Change |
|---|---|---|
| 2025 | 935,094 | +7,984 |
| 2024 | 927,110 | +9,371 |
| 2023 | 917,739 | +8,583 |
| 2022 | 909,156 | +12,853 |
| 2021 | 896,303 | +8,495 |
| 2020 | 887,808 | n/a |