Le Mars city, Iowa
Official LSAD Designation: Le Mars city • Census GEOID: 1944400
• Plymouth County
Demographics & Population Profile
Population and demographics for Le Mars city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 10,760 | — | 2025 | Census |
| Median Age | 39 yrs | ±3.3 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 4,342 | ±208 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).