What is the population of Castalia?

The population of Castalia, IA is 156.

Where is Castalia located?

Castalia, IA is located at latitude 43.1119200 and longitude -91.6762600. It is in United States.

What is the area of Castalia?

The area of Castalia, IA is 1502193 km².

What is the elevation of Castalia?

Castalia, IA has an elevation of 380 meters (1247 feet) above sea level.

What time zone is Castalia in?

Castalia, IA is in the America/Chicago time zone.

What state is Castalia in?

Castalia is in the state of Iowa, United States.

What county is Castalia, IA in?

Castalia is in Winneshiek County, Iowa.

How has the population of Castalia changed?

The population of Castalia, IA has decreased from 173 (2010) to 156 (2020), a change of -9.8%.

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Castalia, Iowa

Castalia: city in Winneshiek County, Iowa, United States

About

Castalia is a city located in the county of Winneshiek in the U.S. state of Iowa. Its population at the 2010 census was 173. After 10 years in 2020 city had an estimated population of 156 inhabitants.

Castalia locator map — Location of Castalia on Iowa map.

Quick Facts about Castalia

Population	156 (2020)
Country	United States of America
State	Iowa (United States)
County	Winneshiek County
Postal code	52133
Area	1502193 km²
Latitude & Longitude	43.1119,-91.6763
Altitude	1,247 feet / 380 meters
Time Zone	Central Time Zone
Local time	21:57:30 (18th April 2026)
Population growth	-10.9% (2010-2020)
Weather	44℉ Slight Chance Snow Showers 7-days weather

IAMap-doton-Castalia locator map image

Geography

Castalia is located at 43°6'43"N 91°40'35"W (43.1119200, -91.6762600).

Castalia map

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Weather

44°F

Slight Chance Snow Showers

15 to 18 mph NW Saturday

A slight chance of rain showers before 10am, then a slight chance of snow showers between 10am and 1pm. Mostly sunny, with a high near 44. Northwest w...

7-Day Forecast

Demographics

According to census records, the population of Castalia decreased by 10.9% in 10 years.

Year	Population	% Change	Method
2010	173	-	census
2011	172	-0.58%	estimation process
2012	172	0%	estimation process
2013	170	-1.18%	estimation process
2014	168	-1.19%	estimation process
2015	167	-0.6%	estimation process
2016	163	-2.45%	estimation process
2017	160	-1.88%	estimation process
2018	159	-0.63%	estimation process
2019	158	-0.63%	estimation process
2020	156	-1.28%	estimation process

Castalia zip code is 52133. County name: Winneshiek, County fips: 19191

Nearby Schools and Colleges

Schools and campuses linked to Castalia, IA. Select a name to open its map and contact details.

Code	Name	City	ZIP
154110	Northeast Iowa Community College	Calmar (IA)	52132-0400

Nearby Transit Stations (2)

Rail and bus stations connected to Castalia, IA. Select a station to open its map and address details.

Code	Name	Address	Type
LSE	La Crosse	St. Andrew and Caledonia Streets	RAIL
WIN	Winona station	65 East Mark Street	RAIL

Nearby Post Offices

Closest post offices linked to Castalia.

Post Office Name	City	ZIP
Castalia Post Office	Castalia (IA)	52133

Other places with the same name (2)

Castalia, Ohio village in Erie County, Ohio with a population of 810 people.
Castalia, North Carolina human settlement in Nash County, North Carolina, United States of America with a population of 273 people.

Other cities in Winneshiek County

Cities, towns, neighborhoods & other populated places in Winneshiek County , IA.

City Name	Population	Title
Decorah	7,484	Town in Iowa
Calmar	934	Township in Winneshiek County, Iowa
Ossian	769	City in Iowa
Spillville	341	Human settlement in Winneshiek County, Iowa, United States of America
Fort Atkinson	320	City in Winneshiek County, Iowa, United States
Ridgeway	285	American city in Iowa
Jackson Junction	54	Human settlement in Winneshiek County, Iowa, United States of America