Frontenac, MO Demographics
Frontenac, MO is the 183rd most populous of 1082 cities in Missouri, with 3,612 residents across 3 square miles. That is about 1,254 people per square mile.
At the 2020 census
| Population | 3,612 |
|---|---|
| Land area | 3 sq mi |
| Density | 1,254 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Frontenac, MO compares to the US
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About this page
City statistics cover the municipal boundary only, not the wider metro area.
Figures come from the 2020 census and the American Community Survey, compared against national averages.