what county is port lavaca texas
PORT LAVACA, TEXAS. Port Lavaca, originally known as Lavaca, the county seat of Calhoun County, is in the north central part of the county (at 28Â°37' N, 96Â°38' W) on the west coast of Lavaca Bay. The town is served by U.S. Highway 87, State highways 35 and 238, Farm roads 1090 and 3084, and the Southern Pacific line.