Hecla, SD -- U.S. city in South Dakota Population (2000): 314 Housing Units (2000): 170 Land area (2000): 0.340114 sq. miles (0.880891 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.340114 sq. miles (0.880891 sq. km) FIPS code: 27980 Located within: South Dakota (SD), FIPS 46 Location: 45.882018 N, 98.151810 W ZIP Codes (1990): 57446 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Hecla, SD Hecla