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ZIP Code 57446 – Hecla, SD

Hecla, South Dakota · Brown County · Central time

ZIP code57446
CityHecla
StateSouth Dakota
CountyBrown County
Area code605
Population223
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area155.45 sq mi
Center (lat, long)45.8708, -98.1527

Map

Nearby ZIP codes

57449 Houghton · 10 mi57432 Claremont · 14.2 mi57421 Amherst · 14.2 mi58474 Oakes · 16 mi57441 Frederick · 17.6 mi57433 Columbia · 18 mi58017 Cogswell · 18.7 mi57426 Barnard · 18.9 mi

About ZIP 57446

ZIP code 57446 is assigned to Hecla, South Dakota. It lies in Brown County. Its Census area covers about 155.45 square miles of land. The closest neighboring ZIP is 57449 (Houghton), about 10 miles away.

Every address in 57446 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