61748 -- U.S. ZIP code Municipality (1990): HUDSON, Illinois All ZIPs for this municipality (1990): 61748 Population (2000): 2589 Housing Units (2000): 1070 Land area (2000): 42.190968 sq. miles (109.274102 sq. km) Water area (2000): 1.232615 sq. miles (3.192458 sq. km) Total area (2000): 43.423583 sq. miles (112.466560 sq. km) Located within: Illinois (IL) Location: 40.627948 N, 88.977117 W