Castalia Flag

Castalia

County Seat:
No
Area (mi²):
0.578
State:
Iowa

Castalia is a city located in Winneshiek County, Iowa. Castalia has a 2026 population of 141. Castalia is currently declining at a rate of -0.7% annually and its population has decreased by -3.42% since the most recent census, which recorded a population of 146 in 2020.

141
Total Population
244
Density (mi²)
-1 -0.7%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)