Heron, MT -- U.S. Census Designated Place in Montana Population (2000): 149 Housing Units (2000): 63 Land area (2000): 3.392157 sq. miles (8.785645 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 3.392157 sq. miles (8.785645 sq. km) FIPS code: 35875 Located within: Montana (MT), FIPS 30 Location: 48.057437 N, 115.960373 W ZIP Codes (1990): 59844 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Heron, MT Heron