Brown, county (307 sq mi/795 sq km; 1990 pop. 5,836), W Ill.; Mount Sterling; 39°57'N 90°45'W. Bounded by Illinois R. (SE) and La Moine R. (NE); drained by small McKee Creek. Agr. (cattle, hogs; corn, sorghum, soybeans). Bituminous coal. Formed 1839. Part of Siloam Springs State Park in SW.
Capital city or county seat is shown by the symbol