62994 -- U.S. ZIP code Municipality (1990): VERGENNES, Illinois All ZIPs for this municipality (1990): 62994 Population (2000): 872 Housing Units (2000): 295 Land area (2000): 36.025774 sq. miles (93.306323 sq. km) Water area (2000): 0.389062 sq. miles (1.007666 sq. km) Total area (2000): 36.414836 sq. miles (94.313989 sq. km) Located within: Illinois (IL) Location: 37.901441 N, 89.334857 W