Find the last 4 digits (ZIP+4) for an address in 52078

ZIP 52078, Worthington, IA is filled in. Just type the street address.

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ZIP Code 52078 – Worthington, IA

Worthington, Iowa · Dubuque County · Central time

ZIP code52078
CityWorthington
StateIowa
CountyDubuque CountyDelaware County
Population870
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area41.51 sq mi
Center (lat, long)42.3958, -91.1157

Area codes in this area

563

These are the area codes that most often serve ZIP 52078 (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

52046 Farley · 6.1 mi52040 Dyersville · 7.6 mi52237 Hopkinton · 7.9 mi52033 Cascade · 9.9 mi52045 Epworth · 10.3 mi52041 Earlville · 10.4 mi52223 Delhi · 10.7 mi52036 Delaware · 12.6 mi

About ZIP 52078

ZIP code 52078 is assigned to Worthington, Iowa. It crosses 2 counties; most of its land is in Dubuque County. Its Census area covers about 41.51 square miles of land. The closest neighboring ZIP is 52046 (Farley), about 6.1 miles away.

Every address in 52078 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