Gregory-Portland Independent School District is a public school district based in Portland, Texas (USA). In addition to Portland, the district also serves the city of Gregory as well as the unincorporated communities of Doyle, Falman-County Acres, and Tradewinds. In 2009, the school district was rated "academically acceptable" by the Texas Education Agency. Gregory-Portland ISD students are required to adhere to a detailed dress code. Students may wear polo shirts, pre-approved school club shirts, turtlenecks, and other basic outerwear.