The Keller Athletic Boosters provide financial support to Keller High School and the two middle schools that feed KHS — Keller Middle School and Indian Springs Middle School. These schools are members of the Keller Independent School District.
Keller High School is the name sake of the Keller ISD. The first high school in Keller is the only Keller ISD high school located in the city of Keller and is the home of the Keller Indians.
Keller Middle School was originally Keller High School before KHS moved to its current location. Keller Middle School is located in central Keller and all KMS students attend Keller High School. Keller Middle School is home to the KMS Comanches.
Indian Springs Middle School is home to the ISMS Eagles and located in South Keller. Due to the location of ISMS in south Keller, some students will attend Keller High School and the remaining students will attend other high schools in the Keller Independent School District.