62818 -- U.S. ZIP code Municipality (1990): BROWNS, Illinois All ZIPs for this municipality (1990): 62818 Population (2000): 345 Housing Units (2000): 154 Land area (2000): 22.378099 sq. miles (57.959007 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 22.378099 sq. miles (57.959007 sq. km) Located within: Illinois (IL) Location: 38.378706 N, 87.972917 W