Pittsburg is a city in and the county seat of Camp County, Texas, United States. It is best known as the former home of the giant poultry producer Pilgrim's Corp and of racing legend Carroll Shelby, as well as the popular local sausage, Pittsburg Hotlinks. In 1902, it was the site of an early flight attempt by the Ezekiel Air Ship Mfg Co. With a 2020 census-tabulated population of 4,335, it is the most-populous city in Camp County.