Castalia, IA Profile: Facts, Map & Data


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Castalia, Iowa - Basic Facts

The City of Castalia had a population of 171 as of July 1, 2016. Castalia ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.

The primary coordinate point for Castalia is located at latitude 43.1128 and longitude -91.677 in Winneshiek County. The formal boundaries for the City of Castalia (see map below) encompass a land area of 0.58 sq. miles and a water area of 0 sq. miles. Winneshiek County is in the Central time zone (GMT -6). The elevation is 1,247 feet.

The City of Castalia (GNIS ID: 2393770) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Castalia is located within Township of Bloomfield, a minor civil division (MCD) of Winneshiek County.

Beneath the boundary map are tables with Castalia population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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City of Castalia, IA Boundary Map

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Boundary Maps: Township of Bloomfield | Winneshiek County | Iowa Counties

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Castalia, IA Data & Demographics (As of July 1, 2016)


Total Population 171
Population in Households 171
Population in Familes 142
Population in Group Qrtrs 0
Population Density1 294
Diversity Index2 10


Total Households 82
Average Household Size 2.09
Family Households 58
Average Family Size 2


Total Housing Units 84 (100%)
Owner Occupied HU 68 (81.0%)
Renter Occupied HU 15 (17.9%)
Vacant Housing Units 2 ( 2.4%)
Median Home Value $177,778
Average Home Value $243,929


Median Household Income $56,219
Average Household Income $63,027
Per Capita Income $26,943
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.19% -0.35%
Households 0.0% 0.0%
Families 2.73% -0.35%
Median Household Income   2.59%
Per Capita Income   2.8%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Castalia, IA - Peer Comparisons by Rank and Percentile

The table below compares Castalia to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 746 27th
Population Density1 # 792 22nd
Diversity Index2 # 423 58th
Median Household Income # 339 67th
Per Capita Income # 497 51st

Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.

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