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Castalia, IA

Population
142
U.S. Census Population Estimates Program · 2025
Elevation
1,247 ft
Median Home Value
$97,500
U.S. Census American Community Survey 5-Year · 2024
Median Income
$61,250
U.S. Census American Community Survey 5-Year · 2024

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Castalia in context.

OverallBest places in IowaPopulation rankingHighest population places in IowaNearest larger communityWaverly, Iowa48 miles away · 10,561 residents.

About Castalia

Castalia is a city in Winneshiek County, Iowa, United States. The 2020 census counted 145 residents. The railroad was built through Castalia in 1864. Castalia was incorporated in 1902. The through line in Castalia is the way its history and present-day settings remain visible on the same map. Castalia makes the most sense through those concrete details, with its history still visible in the settings people use today.

Top Rating Signals

Highest current ratings for this town.

Lower County Wildfire Hazard Potential ClassA+100.0ratingLower Projected Late-Century County-Area Exposure to Sea-Level RiseA+100.0ratingLow PopulationA+100.0rating

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