61252 -- U.S. ZIP code Municipality (1990): FULTON, Illinois All ZIPs for this municipality (1990): 61252 Population (2000): 5823 Housing Units (2000): 2447 Land area (2000): 60.962764 sq. miles (157.892828 sq. km) Water area (2000): 0.409207 sq. miles (1.059840 sq. km) Total area (2000): 61.371971 sq. miles (158.952668 sq. km) Located within: Illinois (IL) Location: 41.863049 N, 90.145249 W