Although the school is located in Frisco, it mostly serves students from Prosper and McKinney.

Due to the rapidly increasing number of students in Prosper ISD, the district began construction of a second high school in the summer of 2018.

[6] In the 2022–23 school year, Rock Hill's first principal, Dustin Toth, stepped down from his position in order to become the first principal at Walnut Grove instead.

During regular school zone hours, there are crossing guards who protect students from accidents.

Outside of school zone hours, especially in the evening where student athletes and marching band members need to go out of school, there are no guards, and cars travel at unreduced speeds.