Jackson County, organized as one of the original 33 counties by the Territorial Legislature, was organized on September 24, 1855.The county was founded by George Coleman; Stephen J. Elliot; John Dutt; Simon McCrory; Simeon Fees; Godfrey Hafer; James H. Baxter; S. W. McComas; Peter Bryant; Preston H. Humphrey; John James; J. H. Bateman; A. Ash; John ...
Population. 1  The population of Greenville is 26,723. 2  67.9% of the total population of Greenville is White, 16.2% is Black or African American, and 1.4% is Asian. 3  The age distribution of Greenville is 56.1% ages 20-64 years, 27.7% ages 19 years or younger and 16.2% ages 65 years or older. 4  The median age for females is 36.6 years old.
With an estimated population of 491,863 in 2015, Greenville County is South Carolina's largest county. The Countys population has increased by over 40,000 between 2010 and 2015 or 1.8% per year. Greenville is one of the ten counties that comprise the Upstate Region of South Carolina.