61846 -- U.S. ZIP code Municipality (1990): GEORGETOWN, Illinois All ZIPs for this municipality (1990): 61846 Population (2000): 5163 Housing Units (2000): 2197 Land area (2000): 41.996493 sq. miles (108.770413 sq. km) Water area (2000): 0.118506 sq. miles (0.306928 sq. km) Total area (2000): 42.114999 sq. miles (109.077341 sq. km) Located within: Illinois (IL) Location: 39.974120 N, 87.631388 W