Petersburg, AK -- U.S. city in Alaska Population (2000): 3224 Housing Units (2000): 1367 Land area (2000): 43.859018 sq. miles (113.594330 sq. km) Water area (2000): 2.181082 sq. miles (5.648977 sq. km) Total area (2000): 46.040100 sq. miles (119.243307 sq. km) FIPS code: 60310 Located within: Alaska (AK), FIPS 02 Location: 56.804414 N, 132.942013 W ZIP Codes (1990): 99833 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Petersburg, AK Petersburg