What is the population of Castalia, Iowa?

Castalia has a population of approximately 142 according to the latest available open data.

Where is Castalia, Iowa located?

Castalia is located in Iowa, United States, at approximate coordinates 43.1126°, -91.6769°.

What is the median household income in Castalia?

The median household income in Castalia is approximately $61,250 based on the most recent open data.

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Castalia

Iowacity

Featured view

Castalia

Total population

142

Median home value

$97,500

9.8%

Bachelor's+

Median income

$61,250

Castalia$61k

National$74k

Elevation380 m

Land area1.51 km²

Weather67°F · Showers And Thunderstorms

Coordinates43.11°, -91.68°

Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.

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Active weather alerts

Flood Watch · Severe
Flood Watch issued September 18 at 5:48AM CDT until September 19 at 1:00PM CDT by NWS La Crosse WI

Source: NOAA National Weather Service.

City facts

Elevation

380 m

Area

1.51 km²

Facts from Wikidata (CC0).

Overview

Castalia is a city in Winneshiek County, Iowa, United States. The population was 145 at the 2020 census.

History & geography

History

The railroad was built through Castalia in 1864. Castalia was incorporated in 1902.

Geography

According to the United States Census Bureau, the city has a total area of , all land.

Read full article on Wikipedia

Excerpted from the corresponding Wikipedia article (CC BY-SA).

Demographics & economy

Median age

Median home value

$97,500

Housing units

Poverty rate

7.9%

Unemployment

Race & ethnicity

White

100%

Black

Asian

Hispanic

Source: US Census Bureau — American Community Survey, 5-year estimates.

Geography

Latitude

43.1126

Longitude

-91.6769

Water area

—

View on OpenStreetMap

Coordinates & boundaries from the US Census TIGER/Line shapefiles.

Climate

Current forecast

Today

67°F

Showers And Thunderstorms

Tonight

59°F

Showers And Thunderstorms

Saturday

71°F

Showers And Thunderstorms Likely

Saturday Night

56°F

Showers And Thunderstorms Likely

Sunday

64°F

Rain Showers Likely

Sunday Night

50°F

Chance Rain Showers

Forecast for Castalia, IA from NOAA NWS API.

Air quality

Industrial & pollution facilities

Natural hazard risk

Health (adults)

High blood pressure

29.2%

Diabetes

8.8%

Adult obesity

36.6%

Binge drinking

22.9%

Adult smoking

14.5%

No leisure activity

22.7%

Age-adjusted prevalence estimates from CDC PLACES (latest release).

Walkability

Amenities nearby

Wildlife & biodiversity

Observations (last 5 yrs, 10 mi)

5,042

Distinct species (top 10)

Most-observed species

American Robin
Turdus migratorius Linnaeus, 1766 · Aves
288
Red-winged Blackbird
Agelaius phoeniceus (Linnaeus, 1766) · Aves
268
House Sparrow
Passer domesticus (Linnaeus, 1758) · Aves
175
Mourning Dove
Zenaida macroura (Linnaeus, 1758) · Aves
167
Song Sparrow
Melospiza melodia (A.Wilson, 1810) · Aves
150
American Crow
Corvus brachyrhynchos C.L.Brehm, 1822 · Aves
144
Northern Cardinal
Cardinalis cardinalis (Linnaeus, 1758) · Aves
136
Blue Jay
Cyanocitta cristata (Linnaeus, 1758) · Aves
122

Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).

Schools

Total

Elementary

Middle

High

Other

Largest nearby schools

South Winneshiek Elementary School
Elementary · Ossian · 191 students · 13.6:1 ratio
South Winneshiek Middle School
Middle · Ossian · 129 students · 16.1:1 ratio

Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).

Earthquake history

Quakes ≥ 2.5 (25 yrs, 62 mi)

Largest magnitude

—

Largest event

—

Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).

Photos

Sights & places nearby

Notable people from here

Nearby places in Iowa

Browse all places in Iowa →

Geography & sun

Avg solar (kWh/m²/day)

3.89

Annual solar (kWh/m²)

1,418

Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.

Nearby airports

Public attention

Wikipedia views (last 30 days)

Avg daily Wikipedia views

Attention level

Obscure

Pageview totals from the Wikimedia Pageviews API.

Books about this place

Recent natural events nearby

Ground air-quality sensors

Recently spotted species

Western Foxsnake

Pantherophis ramspotti

Lithobates catesbeianus

purple prairie clover

upright yellow woodsorrel

Oxalis stricta

Seen 2026-07-06

Research-grade observations from iNaturalist (within ~15 mi).

Nearest stream gauge

Events

Gallery

Sources

• Wikipedia
• US Census Bureau (ACS 5-year estimates)
• NOAA National Weather Service
• Wikidata
• USGS Earthquake Catalog (global feed)
• NCES via Urban Institute Education Data Portal
• GBIF (Global Biodiversity Information Facility)
• iNaturalist
• CDC PLACES
• Open-Meteo / sunrise-sunset.org
• Wikipedia Pageviews API