Find the last 4 digits (ZIP+4) for an address in 52556

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ZIP Code 52556 – Fairfield, IA

Fairfield, Iowa · Jefferson County · Central time

ZIP code52556
CityFairfield
StateIowa
CountyJefferson County
Population11,448
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area175.54 sq mi
Center (lat, long)41.0242, -91.9275

Area codes in this area

641

These are the area codes that most often serve ZIP 52556 (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

52557 Fairfield · 2 mi52635 Lockridge · 8.9 mi52567 Libertyville · 9.9 mi52580 Packwood · 10.2 mi52540 Brighton · 10.6 mi52535 Birmingham · 11.3 mi52533 Batavia · 11.4 mi52585 Richland · 11.8 mi

About ZIP 52556

ZIP code 52556 is assigned to Fairfield, Iowa. It lies in Jefferson County. Its Census area covers about 175.54 square miles of land. The closest neighboring ZIP is 52557 (Fairfield), about 2 miles away.

Every address in 52556 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