Find the last 4 digits (ZIP+4) for an address in 52557

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ZIP Code 52557 – Fairfield, IA

Fairfield, Iowa · Jefferson County · Central time

ZIP code52557
CityFairfield
StateIowa
CountyJefferson County
Population685
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area0.27 sq mi
Center (lat, long)41.0201, -91.9664

Area codes in this area

641

These are the area codes that most often serve ZIP 52557 (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

52556 Fairfield · 2 mi52567 Libertyville · 8.2 mi52580 Packwood · 8.7 mi52533 Batavia · 9.4 mi52535 Birmingham · 10.8 mi52635 Lockridge · 10.9 mi52585 Richland · 11.7 mi52540 Brighton · 12 mi

About ZIP 52557

ZIP code 52557 is assigned to Fairfield, Iowa. It lies in Jefferson County. Its Census area covers about 0.27 square miles of land. The closest neighboring ZIP is 52556 (Fairfield), about 2 miles away.

Every address in 52557 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