Gail is a census-designated place in and the county seat of Borden County, Texas, United States, that is ocated at the junction of U.S. Route 180 and Farm to Market Road 669. As of the 2010 Census, the population was 231. The town and county are named for Gail Borden, Jr., the inventor of condensed milk. Gail Mountain is located on the southwestern edge of town. The 20th annual Christmas lighting of the star atop Gail Mountain was held on November 29, 2013.