Gastonia is the largest city in and county seat of Gaston County, North Carolina, United States. It is the second-largest satellite city of the Charlotte area, behind Concord. The population was 80,411 at the 2020 Census, up from 71,741 in 2010. Gastonia is the 13th most populous city in North Carolina. It is part of the Charlotte metropolitan area, officially designated the Charlotte Metropolitan Statistical Area (MSA).
The city is a historic center for textile manufacturing and was the site of the Loray Mill Strike of 1929, which became a key event in the labor movement. While manufacturing remains important to the local economy, the city also has well-developed healthcare, education, and government sectors.