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Iron Mountain Lake city, Missouri

Official LSAD Designation: Iron Mountain Lake city • Census GEOID: 2935450 • St. Francois County

Demographics & Population Profile

Population and demographics for Iron Mountain Lake city.

Demographic Variable Estimate / Count Margin of Error Period Source
Total Population (2025 PEP Estimate) 647 — 2025 Census
Median Age 49.2 yrs ±10.5 2020-2024 Census ACS 5-Year 2024
Total Households 298 ±75 2020-2024 Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).