Alvin Independent School District is a school district based in Alvin, Texas, U.S. Alvin ISD is a large suburban school district south of Houston in Alvin, Manvel, Hillcrest, Iowa Colony, Liverpool, and portions of Pearland. It also serves Amsterdam and some areas with Rosharon postal addresses. AISD serves Pearland city's rapidly growing western portion of the city including the new large master-planned communities of Shadow Creek Ranch, South Fork, and Southern Trails. Alvin ISD covers 252 square miles (650 km2) of land.