The Eastlake High School Library, a former dual purpose library with the City of Chula Vista public library, contains a collection of 22,000 books. Students have access to printing and one of thirty-five desktop computers as well as many places to study and work together on group assignments. The library is open before school and after school and during lunch and nutrition break.

During the month of February 2020, 4,018 students (1,118 unique) visited the library. Classrooms that visit the library for lessons seek information about:
- Using Our Research Databases Effectively
- Using the Library and it’s functions through a digital scavenger hunt
- Using Lateral Reading to verify online resources