Find the last 4 digits (ZIP+4) for an address in 52133

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ZIP Code 52133 – Castalia, IA

Castalia, Iowa · Winneshiek County · Central time

ZIP code52133
CityCastalia
StateIowa
CountyWinneshiek CountyFayette County
Population673
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area43.67 sq mi
Center (lat, long)43.1089, -91.6606

Area codes in this area

319

These are the area codes that most often serve ZIP 52133 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

52161 Ossian · 5 mi52162 Postville · 5.4 mi52135 Clermont · 6.1 mi52156 Luana · 10.6 mi52175 West Union · 11.4 mi52141 Elgin · 12.3 mi52166 Saint Lucas · 14.1 mi52172 Waukon · 14.3 mi

About ZIP 52133

ZIP code 52133 is assigned to Castalia, Iowa. It crosses 2 counties; most of its land is in Winneshiek County. Its Census area covers about 43.67 square miles of land. The closest neighboring ZIP is 52161 (Ossian), about 5 miles away.

Every address in 52133 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources