Norcross is a city in Gwinnett County, Georgia, United States. The population as of the 2010 census was 9,116, while in 2015 the estimated population was 16,634. It is included in the Atlanta-Sandy Springs-Marietta metropolitan statistical area, which is included in the Atlanta-Sandy Springs-Gainesville combined statistical area.HistoryNamed for former Atlanta Mayor Jonathan Norcross, it was chartered as a town on October 26, 1870.The city sits along the Eastern Continental Divide. Streams to the west of the city center travel to the Chattahoochee River and ultimately the Gulf of Mexico, while streams to the east flow to the Yellow River, a tributary of the Ocmulgee River, which flows to the Atlantic Ocean north of Brunswick. This divide, or ridge, played a significant role in the early settlement of the area. Originally, the Creek and Cherokee people occupied this land, and the ridgeline was used as a major transportation route. Two American forts were established in the early 19th century due to the War of 1812: Fort Daniel (at Hog Mountain) and Peachtree Fort (in Atlanta). These two forts were connected by this old Indian trail which became known as the original Peachtree Road. By around 1840, this trail had evolved into a stagecoach route connecting South Carolina and Alabama through Georgia. The surrounding area became populated, and the small communities of Pinckneyville and Flint Hill prospered.