62618 -- U.S. ZIP code Municipality (1990): BEARDSTOWN, Illinois All ZIPs for this municipality (1990): 62618 Population (2000): 7578 Housing Units (2000): 3100 Land area (2000): 100.902388 sq. miles (261.335973 sq. km) Water area (2000): 0.941820 sq. miles (2.439302 sq. km) Total area (2000): 101.844208 sq. miles (263.775275 sq. km) Located within: Illinois (IL) Location: 40.005505 N, 90.423146 W