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Brown County is a county located in the state of Illinois. Based on the 2010 census, the
population was 6,937. Brown County was created
on February 1, 1839. The county seat is Mount
The county is named for Jacob Brown (1775-1828), a successful American Revolution army officer responsible for Great Lakes defenses.
The county is named after Jacob Brown (1775-1828) was a Brigadier General of NY volunteers during the early years of the War of 1812. By 1815, he was Commander-in-chief of the Army. He received a gold medal for his action at Chippewa, Erie, and Niagra.
County QuickFacts: CensusBureau Quick Facts
Brown County was created on February 1, 1839 (Laws, 1839, p. 52) and was formed from Schuyler County. Present area,
or parts of it, formerly included in: Schuyler County (1825-1839), Pike County (1821-1825), Madison County (1812-1821)
and St. Clair County (1795-1812). The County was named for Jacob Brown, Major General during the War of 1812, who won
distinction at Sackett's Harbor, Chippewa and Niagara. The County Seat is Mount Sterling (1839-Present).
As reported by the Census Bureau, the county has a total area of 307 square miles (796 km2), of which 306 square miles (792 km2) is land and 2 square miles (4 km2) (0.52%) is water.
Brown county is located in west Illinois. Part of Siloam
Springs State Park is located in this county. The Illinois River flows along part of
the county's eastern border.
Bordering counties are as follows: