Norcross is a city in Gwinnett County, Georgia, United States. The city had a population of 10,946 in 2009. It is included in the Atlanta-Sandy Springs-Marietta, Georgia metropolitan statistical area, which is included in the Atlanta-Sandy Springs-Gainesville, Georgia-Alabama (part) combined statistical area. Although much of western Gwinnett County has a Norcross mailing address, the boundaries of the city do not extend to unincorporated areas, such as Peachtree Corners.

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