Rock Valley city, Iowa
Official LSAD Designation: Rock Valley city • Census GEOID: 1968205
• Sioux County
Demographics & Population Profile
Population and demographics for Rock Valley city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 4,188 | — | 2025 | Census |
| Median Age | 35.1 yrs | ±6.7 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 1,452 | ±147 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).