City of Sour Lake, Texas is in Hardin County. In the last census of 2010, the population was 1813. Hardin-Jefferson Independent School District is the public school and home of the Hawks. Sour Lake offers a great place to live with a great school district. There are plans for new housing additions and upgrades to the city park happening soon. Come visit Sour Lake today and experience a small town atmosphere with a short drive to the city. There are lots of opportunities for small businesses as we continue to grow.