County in South Dakota · 838 sq mi · 5 people per sq mi
4,417 people live in Marshall County. The typical household earns $78,156, and the median resident is 42.5 years old.
2026 projection
From 4,301 in 2020
Poverty rate 6.06%
Men 40.6 · Women 45.1
1890–2026
4,417
2026 projection
2.7% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1890–2026
4,417
2026 projection
2.7% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 4,417 | -9 | 0.20% |
|---|---|---|---|
| 2025 | 4,426 | -9 | 0.20% |
| 2024 | 4,435 | +47 | 1.07% |
| 2023 | 4,388 | +24 | 0.55% |
| 2022 | 4,364 | +46 | 1.07% |
| 2021 | 4,318 | +17 | 0.40% |
| 2020 | 4,301 | -612 | 12.46% |
| 2019 | 4,913 | +40 | 0.82% |
| 2018 | 4,873 | -25 | 0.51% |
| 2017 | 4,898 | +63 | 1.30% |
Showing 10 of 28 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 43 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 17 residents
60% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 60% | 62% | 58% |
| Never married | 24% | 27% | 20% |
| Divorced | 7% | 9% | 6% |
| Widowed | 8% | 2% | 16% |
| Separated | <1% | <1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
8 sources, all from the U.S. Census Bureau