Castalia, IA Demographics
Castalia, IA is the 773rd most populous of 1027 cities in Iowa, with 145 residents across 1 square miles. That is about 251 people per square mile.
At the 2020 census
| Population | 145 |
|---|---|
| Land area | 1 sq mi |
| Density | 251 / sq mi |
Data: 2020 Decennial Census · land area from Census TIGER/Line
How Castalia, IA 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.