History of all 16 Counties: #9 Knox County

KNOX COUNTY Population: 50,710 (2020 Census) Knox County, established in 1825, is named after Henry Knox, the first U.S. Secretary of War. The county is rich in history and culture with several historic sites, notable figures, and scenic attractions. Key Cities and Villages Galesburg (Population: 30,460) Historical Significance: Founded by George Washington Gale, Galesburg is …