In 2022, Castalia, IA had a population of 140 people with a median age of 59.4 and a median household income of $39,375. Between 2021 and 2022 the population of Castalia, IA declined from 158 to 140, a −11.4% decrease and its median household income declined from $46,667 to $39,375, a −15.6% decrease.
The 5 largest ethnic groups in Castalia, IA are White (Non-Hispanic) (95%), White (Hispanic) (5%), Black or African American (Non-Hispanic) (0%), Black or African American (Hispanic) (0%), and American Indian & Alaska Native (Non-Hispanic) (0%).
None of the households in Castalia, IA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
97.9% of the residents in Castalia, IA are U.S. citizens.
In 2022, the median property value in Castalia, IA was $92,100, and the homeownership rate was 90.7%.
Most people in Castalia, IA drove alone to work, and the average commute time was 26.1 minutes. The average car ownership in Castalia, IA was 3 cars per household.