Governor Mifflin Senior High School is the only high school in the Governor Mifflin School District. Named for the Revolutionary War major and first governor of Pennsylvania, Thomas Mifflin, it is located in Shillington, Berks County, Pennsylvania and serves students in the five communities of Shillington, Kenhorst, Mohnton, Cumru, and Brecknock.Governor Mifflin's mascot and logo is "Marvin the Mustang." The school competes at the AAAAA and AAAAAA level in the PIAA categories. As of the 2020-2021 school year, Governor Mifflin Senior High School had a student population of 1,482 and 83.7 teachers of a full-time basis for a student-teacher ratio of 17.71. Source: Wikipedia (en)