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Castalia
Iowa›Winneshiek County

CastaliaIA

A town of 142, settled in 1854.

Frankville School · Photo: James M Larson · CC BY-SA 3.0
Photo of Castalia

Castalia, IA · Frankville School · Photo: James M Larson · CC BY-SA 3.0

Is Castalia a good place to live?

Castalia has fewer than 1,000 residents, too few for fair grades; the figures below are still real.

Small town

142 people, and everyone knows the way

In a town this size, neighbors are the best guide. Ask them anything.

Nearby towns
CastaliaIowaPopPlot
CastaliaIowaPopPlot, 2021
Castalia’s story

172 years in pictures

Census counts: 108 in 1880, a peak of 272 in 1920, 145 in 2020. The archive holds 3 old photos and papers going back to 2004 and 2 maps from 1906 on.

  • 1854Castalia is settled
Explore the history →
Getting set up

Moving to Castalia: who provides what

Who provides power, water and the rest in Castalia, and how to reach them.

The full setup list →
PowerInterstate Power and Light17.8¢/kWh · EIA 2025HIFLD · EIA
WaterCastalia Water WorksNo health-based violations in 5 years · EPAEPA
Internet3 providers100% of addresses get 100/20 MbpsFCC
Trash & dumpNot on file yetWe don’t have Castalia’s trash rules yet
SchoolsPostville Community School DistrictWhich school depends on your addressNCES
Register to voteOnlineIn Iowa you can register online until 15 days before Election Day, in person up to and including Election Day, or by mail (postmarked 15 days before).vote.gov
Who runs elections hereWinneshiek County AuditorWinneshiek County; contacts on the Handbook page.FVAP, Aug 2019
ZIP code5213352133 100%Census 2020

EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.

The data

Ordered by what stands out in Castalia.

Work & commute

With 0.0 jobs for every working resident, most of Castalia’s workers commute out

Among residents in Castalia, 7.9% live below the poverty line. The typical journey to work for Castalia comes to 22 minutes, where Iowa’s towns sit at 19 minutes and U.S. towns at 25 minutes. Half commute less than 15 miles. For Castalia, the median household income is $61,000.

0%work in town
CastaliaIowa townsU.S. towns
Average trip to work22 minutes19 minutes25 minutes
Median household income$61,000$69,000$80,000
Below the poverty line7.9%11%9.6%

Where working residents work

In Castalia0%
Decorah33%
Iowa City4%
Cedar Rapids4%
Des Moines4%
15 mi
median commute distance
3
jobs based in Castalia
A commuter town
jobs vs. working residents

Census LEHD 2023 · ACS

Housing

A larger share of households are owner-occupiers in Castalia than in most of Iowa or the rest of the country

Homes in Castalia are typically worth about $296,000, up 12.1% in a year, 25% above the Iowa typical home.

$296KZillow home value

Typical home value

Castalia$296K
Iowa$237K
+12.1%
value change, 1 year

Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center

Climate

A typical July afternoon in Castalia is cooler than in the typical Iowa or U.S. town

Castalia brings cold, snowy winters and pleasant summers. July afternoons reach 81°, January nights drop to 8° and about 40 inches of snow falls in a winter.

40″snow a winter

Typical low → high °F

Winter12–28°
Spring35–56°
Summer59–79°
Fall38–58°
Oct 3
typical first frost
May 1
typical last frost
+1.0°
vs. the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Health

How healthy Castalia is

Among 141 Iowa towns, just 9 have a lower share of adults who report frequent mental distress than Castalia. Against the Iowa average, Castalia comes out ahead on 7 CDC measures out of 32, and behind on 2. For adults in the town, the share who sleep under 7 hours is 27%.

CastaliaIowa townsU.S. towns
Sleep under 7 hours (CDC PLACES)27%32%36%
Depression (CDC PLACES)19%21%23%
Frequent mental distress (CDC PLACES)15%16%17%
Feel lonely (CDC PLACES)30%32%33%
32 measures vs. Iowa
7 better23 too close to call2 worse
What stands outCastaliaIA
Fewer older adults who have lost all their teeth7.6%11.6%
Fewer adults facing a utility shut-off5%6.4%
More adults who have had cancer11.1%8.7%
Gundersen Palmer Lutheran Hospital and Clinics
12 mi away · emergency room
1 of 3
care shortages: mental health

CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA

Outdoors

0% of Castalia is conserved land

Across 1 park or preserve: 0.2 miles of trail. Castalia has one park or preserve, 5 acres in all.

0%conserved
0%
conserved · 0 of 368 acres
0.2 mi
of trails · 0.3 per sq mi
Biggest places to walkTrailsAcres
1. Castalia City Park0.1 mi5

Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US

Natural hazards

Natural hazards: moderate risk in Castalia, mostly inland flooding

Expected storm and flood damage is higher than in half of U.S. communities. Federal disaster aid has reached households in Castalia after 2 declared disasters, most recently in 2008.

50risk score of 100
FEMA risk score
50Moderate riskLowerHigher
Inland floodingTornadoesHail
2
federal disasters paid out here

FEMA disaster declarations and aid · FEMA National Risk Index · OpenFEMA

Keep exploring

Everything we know about Castalia

17pages on Castalia
After high school

Colleges nearby

1 within 15 miles of the center of Castalia

A commuter town

100% of working residents leave Castalia for work

Where Castalia’s working residents go each day. Line width shows the share.

33% → Decorah Decorah 33% 4% → Iowa City Iowa City 4% 4% → Cedar Rapids Cedar Rapids 4% 4% → Des Moines Des Moines 4% 3% → Postville Postville 3% 3% → West Union West Union 3% Castalia · 0% stay
3jobs based in Castalia
0%of working residents work in town
15 mimedian commute distance

Census LEHD 2023

About Castalia

City in Iowa, United States

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

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Area
0.6 sq mi
Elevation
1,247 ft
ZIP code
52133

Questions about Castalia

Short answers, built from the data on this page.

Is Castalia, IA a good place to live?

Castalia has fewer than 1,000 residents, too few for fair grades; the figures below are still real.