Lemery Senior High School is one of the largest public senior high school in the Division of Batangas Province in terms of student population that is comprised of more than 3300 learners. It is the first and the one of two public senior high schools in Lemery Sub-office.

Lemery Senior High School has two campuses: Main Campus located at District IV, Lemery, Batangas, and Annex Campus located at Bagong Sikat, Lemery, Batangas.

The Faculty is composed of one School Principal, two Assistant Principals, 4 Master Teachers, 137 Teachers, 3 Non-Teaching Personnel,  and 6 Job Order Employees.