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The City of Castalia is located in Winneshiek County in the state of Iowa (IA).

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Castalia, Iowa, a City, in Winneshiek County.

Latest Castalia, IA News:

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County Level News: Winneshiek County News
State Level News: State of Iowa News
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Castalia, IA Map (Interactive)

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Castalia Latitude: 43.1714 Longitude: -91.6620

The Zip Code for Castalia, IA is: 52133

We also provide additional resources for the rest of Winneshiek County and the State of Iowa.

The City of Castalia

Facts & Data:

Castalia Iowa Physical Characteristics:

The City of Castalia has an area of 0.6 square miles
  • Land: 0.58162972972973 Sq. Mi. (100.00%)
  • Water: 0 Sq. Mi.(0.00%)
The Castalia City takes up 0.1% of the area of Winneshiek County.

Map Location Coordinates:

  • Latitude: +43.1128048
  • Longitude: -091.6769622
Castalia Land Water Pie Chart

Castalia, IA Climate Information:

  • Average Temperature: 47.8°F
  • Average Rainfall: 35.88 inches
  • Average Snowfall: 40.3 inches
*Based on annual average for Weather Station USC00136766 POSTVILLE
Latitude: 43.09 Longitude: -91.5581 Elevation: 355.1 feet.

Castalia, IA Population Data:

According to the 2010 U.S. Census, the population of Castalia was 173 people, which is 0.8 % of the entire population of Winneshiek County.


  • 49.13% Male
  • 50.87% Female


  • 100.000% White
  • 0.000% Black
  • 0.000% Asian
  • 0.00% American Indian/Alaskan Native
  • 0.00% Pacific Islander
  • 0.000% Mixed
  • 0.000% Other


  • 98.84% Not Hispanic or Latino
  • 1.16% Hispanic or Latino
Castalia Race Population Ring Chart

Castalia, IA Housing Information:

Average Household Size: 2.1
Number of Residences: 84
  • Occupied: 82 (97.62%)
  • Vacant: 2 (2.38%)

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