Flora is a city in Clay County, Illinois, United States. The population was 5,070 at the 2010 census.
Flora was founded by Samuel White. White was born September 10, 1831 in Warren County, Ohio. He and his family came to Clay County in 1852. During that time, he purchased 85 acres (34 ha) of land from the State of Illinois. His first wife, Sarah Ann Wall was born in 1833. Sarah died December 13, 1859 in Flora, and is buried in the family plot in Elmwood Cemetery. In December 1860, White married Helen M. Riggs in Flora.
The original town of Flora was laid out, surveyed and platted in February 1854 by Ethelred Nixon, County Surveyor; John Brown, Trustee for Songer, Camp & Company; and Samuel White.