61913 -- U.S. ZIP code Municipality (1990): ATWOOD, Illinois All ZIPs for this municipality (1990): 61913 Population (2000): 1882 Housing Units (2000): 802 Land area (2000): 43.445825 sq. miles (112.524165 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 43.445825 sq. miles (112.524165 sq. km) Located within: Illinois (IL) Location: 39.809929 N, 88.453093 W