Franklin County, Illinois Basics:
Franklin County Illinois - Government Site
Population: 39,482
Area: 409 square miles
County seat: Benton
Area code(s) in use: 618
Time zone: CST
High school graduate or higher: 86.8%
Bachelor's degree or higher: 12.9%
Median household income: $37,158
Persons in poverty: 18.8%
Home ownership rate: 77.3%
Mean travel time to work: 24.1 minutes
Adjacent counties:
Hamilton Jackson Jefferson Perry Saline Williamson