61536 -- U.S. ZIP code Municipality (1990): HANNA CITY, Illinois All ZIPs for this municipality (1990): 61536 Population (2000): 2892 Housing Units (2000): 1074 Land area (2000): 41.956341 sq. miles (108.666419 sq. km) Water area (2000): 0.067787 sq. miles (0.175567 sq. km) Total area (2000): 42.024128 sq. miles (108.841986 sq. km) Located within: Illinois (IL) Location: 40.690205 N, 89.780420 W