East Ridge High School in Woodbury, MN is the newest high school in the South Washington County School District. Opened in 2009, East Ridge High School serves over 1,800 students in grades 9-12. A few things to note about East Ridge High School: 82% of the staff possess master's degrees Average Student ACT Score: 22.3 Composite ERHS Robotics Team won the MN state tournament in Continue Reading