The district serves the cities of Abilene and Impact in northeastern Taylor County as well as the portion of Abilene that lies in southeastern Jones County. As of the 2009-10 school year, AISD enrolled 17,016 students in 2 High Schools, 2 Magnet High Schools, 4 Middle Schools, 15 Elementary Schools and numerous special and alternative campuses. The district's enrollment peaked, for the time being, in the late 1990s and early part of the new century as development in south Abilene began to sprawl ever outward, spilling into neighboring Wylie ISD and Jim Ned CISD. As the city continues to age, school enrollment seems to have stabilized, for now, around 17,000.