Petersburg -- U.S. city in Virginia Population (2000): 33740 Housing Units (2000): 15955 Land area (2000): 22.880788 sq. miles (59.260966 sq. km) Water area (2000): 0.304813 sq. miles (0.789462 sq. km) Total area (2000): 23.185601 sq. miles (60.050428 sq. km) Located within: Virginia (VA), FIPS 51 Location: 37.212950 N, 77.400417 W Headwords: Petersburg Petersburg, VA Petersburg city Petersburg city, VA