What are the largest metro areas in South Dakota?
Sioux Falls, SD-MN is the largest metro area in South Dakota, with 314,638 residents in 2025 (Census PEP). Rapid City, SD (156,934) and Sioux City, IA-NE-SD (145,738) come next.
Data as of 2025 · updated
All 3 ranked South Dakota metro areas
| Rank | Metro area | Residents 2025 | Change 2020–25 |
|---|---|---|---|
| 1 | Sioux Falls, SD-MN | 314,638 | +9.5% |
| 2 | Rapid City, SD | 156,934 | +6.2% |
| 3 | Sioux City, IA-NE-SD | 145,738 | +1.0% |
How this is ranked
The Census Bureau's July 1 resident population estimates for 2025, largest first, with the change since 2020. Only metropolitan statistical areas of two or more counties are ranked (OMB Bulletin 23-01): a one-county area's figures are its county's, and micro areas are left out. An area that crosses a state line is ranked in each of its states. Areas without an estimate for the same year as the others are not ranked.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025). Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built.
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Questions
What is the largest metro area in South Dakota?
Sioux Falls, SD-MN is the largest metro area in South Dakota, with 314,638 residents in 2025 (Census PEP). Rapid City, SD (156,934) and Sioux City, IA-NE-SD (145,738) come next.
How is this ranking calculated?
The Census Bureau's July 1 resident population estimates for 2025, largest first, with the change since 2020. Only metropolitan statistical areas of two or more counties are ranked (OMB Bulletin 23-01): a one-county area's figures are its county's, and micro areas are left out. An area that crosses a state line is ranked in each of its states. Areas without an estimate for the same year as the others are not ranked.