61516 -- U.S. ZIP code Municipality (1990): BENSON, Illinois All ZIPs for this municipality (1990): 61516 Population (2000): 698 Housing Units (2000): 290 Land area (2000): 31.424309 sq. miles (81.388582 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 31.424309 sq. miles (81.388582 sq. km) Located within: Illinois (IL) Location: 40.850381 N, 89.118782 W