Lilburn is a city in Gwinnett County, Georgia, United States. The population was 11,596 at the 2010 census. The estimated population was 12,655 in 2015. It is a developed suburb of Atlanta and a part of the Atlanta metropolitan area.GeographyLilburn is located in western Gwinnett County at . U.S. Route 29 passes through the center of town, leading southwest to downtown Atlanta and northeast to Lawrenceville, the Gwinnett County seat.According to the United States Census Bureau, Lilburn has a total area of 16.5sqkm, of which 16.4sqkm is land and 0.1sqkm, or 0.82%, is water.Historical backgroundThe city of Lilburn was founded in 1890 by the Seaboard Air Line Railway. The area previously known as "McDaniel" was renamed "Lilburn", after the general superintendent of the railroad, Lilburn Trigg Myers of Virginia. (The basis of the name change got no official mention at the time, and historical researchers did not confirm the specific link to Myers until the 1990s.) The town prospered and was incorporated as Lilburn on July 27, 1910.A devastating fire and hard economic times in the 1920s ended the prosperity, and the city of Lilburn ceased to exist. A revitalization of the original historic area has emerged with shopping and restaurants in the Old Town district which has been described as a "Slice of History."