Hallettsville is a city in and the county seat of Lavaca County. It was first settled in 1831 by John Hallett. When he died in 1836, his wife donated the land for the townsite. In 1849, a post office was inaugurated and three years later, Hallettsville was officially declared as the county seat, despite its allegations of election fraud and legal manipulation. The city was incorporated twice: in 1875 and in 1888. A year before its reincorporation, a railway was built through the town, and Hallettsville became a major trading center and shipping point for area ranchers and farmers. Agriculture was the city’s economic mainstay. The city also features the Lavaca Medical Center, Pepsico, and a portable-building plant. As of 2010, its population was 2,550.