Bethlehem is a town in Barrow County in the U.S. state of Georgia. As of the 2020 census, it had a population of 715. The major employer in t…Bethlehem is a town in Barrow County in the U.S. state of Georgia. As of the 2020 census, it had a population of 715. The major employer in town is Harrison Poultry, which is the largest non-government employer in Barrow County.