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ZIP Code 57645 – Morristown, SD

Morristown, South Dakota · Corson County · Mountain time

ZIP code57645
CityMorristown
StateSouth Dakota
CountyCorson CountyGrant CountySioux County
Area code605
Population184
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area302.17 sq mi
Center (lat, long)45.9073, -101.7164

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Nearby ZIP codes

57660 Watauga · 10.3 mi57634 Keldron · 11.7 mi57641 Mc Intosh · 19.5 mi57638 Lemmon · 24.9 mi58529 Carson · 28.2 mi57659 Walker · 29.9 mi58564 Raleigh · 30.5 mi57621 Bullhead · 31.9 mi

About ZIP 57645

ZIP code 57645 is assigned to Morristown, South Dakota. It crosses 3 counties; most of its land is in Corson County. Its Census area covers about 302.17 square miles of land. The closest neighboring ZIP is 57660 (Watauga), about 10.3 miles away.

Every address in 57645 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