Home > IA > Winneshiek County > Castalia > Zip 52133

Zip Code 52133 — Castalia, IA

52133 is a ZIP Code associated with Castalia, IA, located within Winneshiek. The postal region supports an estimated population of 673 residents across Data Pending housing units, with a population density of 5.9 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (43.107020, -91.668540)

Data MetricLocal Statistic
Postal / Zip Code52133
Primary CityCastalia
State / ProvinceIA
CountyWinneshiek
Total Population673
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density5.9 people/sq mi
TimezoneAmerica/Chicago

How 52133 Compares

MetricZIP 52133Winneshiek CountyIA State Average
Population67319,1993,210,984
Median IncomeData PendingN/AN/A
Population Density5.9 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 52161Ossian4.6 mi1,532N/A
Zip 52162Postville5.9 mi3,744N/A
Zip 52135Clermont6.1 mi834N/A
Zip 52156Luana10.9 mi769N/A
Zip 52175West Union11.1 mi3,484N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →