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ZIP Code 57078 – Yankton, SD

Yankton, South Dakota · Yankton County · Central time

ZIP code57078
CityYankton
StateSouth Dakota
CountyYankton County
Area code605
Population20,383
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area111.28 sq mi
Center (lat, long)42.9156, -97.4467

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Nearby ZIP codes

57046 Mission Hill · 7.6 mi57067 Utica · 9 mi68730 Crofton · 11.2 mi68774 Saint Helena · 11.2 mi57063 Tabor · 12.1 mi57040 Lesterville · 12.3 mi68736 Fordyce · 12.4 mi57072 Volin · 13.2 mi

About ZIP 57078

ZIP code 57078 is assigned to Yankton, South Dakota. It lies in Yankton County. Its Census area covers about 111.28 square miles of land. The closest neighboring ZIP is 57046 (Mission Hill), about 7.6 miles away.

Every address in 57078 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