Bethalto, IL Demographics
Bethalto, IL is the 235th most populous of 1464 cities in Illinois, with 9,310 residents across 8 square miles. That is about 1,226 people per square mile.
At the 2020 census
| Population | 9,310 |
|---|---|
| Land area | 8 sq mi |
| Density | 1,226 / sq mi |
Data: 2020 Decennial Census · land area from Census TIGER/Line
How Bethalto, IL 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.