Castalia Flag

Castalia

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

Castalia is a city located in Winneshiek County, Iowa. Castalia has a 2025 population of 135. Castalia is currently declining at a rate of -1.46% annually and its population has decreased by -6.25% since the most recent census, which recorded a population of 144 in 2020.

The average household income in Castalia is $65,049 with a poverty rate of 8.51%.The median age in Castalia is 59.3 years: 59.3 years for males, and 59 years for females.

135
Total Population
234
Density (mi²)
-2 -1.46%
Growth

Castalia Population

Castalia Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Castalia includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White142100%

Castalia Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Castalia's average per capita income is $40,250. Household income levels show a median of $50,714. The poverty rate stands at 8.51%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$72,917-
Families$53,333$73,023
Households$50,714$65,049
Non Families$47,500$49,847

$40,250

Average Income

$50,714

Median Household Income

8.51%

Poverty Rate

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)