History of all 16 Counties: #16 Warren County

WARREN COUNTY Population: 16,444 (2023 estimate)Warren County, like many rural areas in Illinois, has experienced population decline over recent decades. Since 2000, the county's population has decreased by approximately 14.2%, reflecting the broader challenges faced by rural communities across the state. Key Facts Named For: General Joseph Warren, a hero of the Revolutionary War who …

History of all 16 Counties: #15 Scott County

SCOTT COUNTY Population: 4,989 (2023 estimate)Scott County, one of Illinois' smallest counties by population. Like other small communities, it has experienced population decline, with a decrease of approximately 14% since 2000. Despite these challenges, Scott County holds a rich history and a close-knit community that proudly celebrates its rural heritage. Key Facts Named For: Scott …

History of all 16 Counties: #14 Schuyler County

SCHUYLER COUNTY Population: 6,902 (2020 census) Key Facts Named For: Philip Schuyler, a Revolutionary War general and U.S. senator. Historical Significance: Known for its early settlement patterns, the county is steeped in pioneer history and the expansion of Illinois during the 19th century. Natural Beauty: The Illinois River forms the eastern boundary, offering scenic and …

History of all 16 Counties: #12 Morgan County

MORGAN COUNTY Population: 32,140 (2023 estimate) Morgan County's population has seen a decline in recent years, with a 12.28% decrease since 2000. Key Facts Named For: Revolutionary War hero Daniel Morgan. Historical Importance: Abraham Lincoln and Stephen Douglas frequently practiced law here. Education Legacy: Home to Illinois College (founded 1829) and the now-closed MacMurray College, …

History of all 16 Counties: #11 Mercer County

MERCER COUNTY POPULATION: 15,699 (2023 estimate) Mercer County has experienced a slight decline in population over the past decades, reflecting broader trends in rural Illinois counties. Key Cities and Villages Aledo (Population: 3,618) County Seat: Known as the hub of Mercer County, Aledo flourished with the arrival of the railroad in the 1850s. Cultural Significance: …

History of all 16 counties: #10 McDonough County

McDONOUGH COUNTY Overview McDonough County, located in Western Illinois, is rich in history, culture, and community landmarks. With a current population of approximately 29,682 (as of the 2020 Census), the county boasts a unique heritage rooted in its connections to the War of 1812 and a tradition of community pride. McDonough County is a perfect …

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 …

History of all 16 Counties: #8 Henderson County

HENDERSON COUNTY Population: 7,331 (2020 Census) History & Culture Henderson County, established in 1841, was named after Richard Henderson, founder of the Transylvania Company, a land acquisition firm instrumental in the early settlement of Kentucky and the Ohio Valley. The county’s location along the Mississippi River has shaped its economy and culture, making it a …

History of all 16 Counties: #7 Hancock County

HANCOCK COUNTY Population: 19,104 (2020 Census) Key Cities & Population: Hamilton (2,951): Situated along the Mississippi River, Hamilton is directly across from Keokuk, Iowa. It was founded by Artois Hamilton and remains a vibrant town with strong historical ties. Carthage (2,605): Known for the 1844 murder of Mormon founder Joseph Smith at the Carthage Jail, …