61449 -- U.S. ZIP code Municipality (1990): LA FAYETTE, Illinois All ZIPs for this municipality (1990): 61449 Population (2000): 518 Housing Units (2000): 206 Land area (2000): 35.402008 sq. miles (91.690777 sq. km) Water area (2000): 0.043243 sq. miles (0.112000 sq. km) Total area (2000): 35.445251 sq. miles (91.802777 sq. km) Located within: Illinois (IL) Location: 41.098764 N, 89.973612 W