02813 -- U.S. ZIP code Municipality (1990): CHARLESTOWN, Rhode Island All ZIPs for this municipality (1990): 02813 Population (2000): 7859 Housing Units (2000): 4797 Land area (2000): 36.821699 sq. miles (95.367759 sq. km) Water area (2000): 1.387111 sq. miles (3.592602 sq. km) Total area (2000): 38.208810 sq. miles (98.960361 sq. km) Located within: Rhode Island (RI) Location: 41.385256 N, 71.668133 W