Alabaster City Schools (ACS). ACS is a suburban public school district located in South Central Shelby County. On July 1, 2013, ACS officially separated from the Shelby County School System and began operating as an independent school district. ACS is the only public school district in the City of Alabaster. There are a total of six schools in the district. Creek View Elementary School, Meadow View Elementary School, Thompson Intermediate School, Thompson Middle School, and Thompson High School house a combined total of 6,121 students in grades K through 12.