Pennsylvania Schools
- Lake Lehman Junior Senior High School
- Lake Lehman School District
- Lakeland School District
- Lakeview School District
- Lampeter Strasburg High School
- Lampeter Strasburg School District
- Lancaster Bible College
- Lancaster Catholic High School
- Lancaster Country Day School
- Lancaster County Christian School
- Lancaster General College Of Nursing And Health Sciences
- Lancaster Mennonite School
- Lancaster Theological Seminary
- Langhorne Manor School
- Langley High School
- Lankenau Environmental Science Magnet High School
- Lansdale Catholic High School
- Larimer School
- Lauder Institute
- Laura H Carnell School
- Laurel Highlands High School
- Laurel Highlands School District
- Laurel School District
- Lawrence Public School
- Lebanon Catholic School
- Lebanon High School
- Lebanon School District
- Lebanon Valley College
- Leechburg Area School District
- Lehigh Carbon Community College
- Lehigh Career And Technical Institute
- Lehigh University
- Lehigh Valley Christian High School
- Lehigh Valley College
- Lehighton Area School District
- Lemington Elementary School
- Lenape Technical School
- Letsche Elementary School
- Lewis C Cassidy School
- Lewisburg Area High School
- Lewisburg Area School District
- Lewistown Area High School
- Liberty High School
- Ligonier Valley High School
- Ligonier Valley School District
- Lincoln Elementary School
- Lincoln High School
- Lincoln Leadership Academy Charter School
- Lincoln Park Performing Arts Charter School
- Lincoln University
- Linden Avenue School
- Linden Hall
- Line Mountain Jr Sr High School
- Line Mountain School District
- Little Flower Catholic High School For Girls
- Littlestown Area School District
- Littlestown Senior High School
- Llanerch Public School
- Lock Haven University Of Pennsylvania
- Loller Academy
- Louis E Dieruff High School
- Lower Bucks Christian Academy
- Lower Dauphin High School
- Lower Dauphin School District
- Lower Macungie Middle School
- Lower Merion High School
- Lower Merion School District
- Lower Moreland Township School District
- Loyalsock Township High School
- Loyalsock Township School District
- Lutheran Theological Seminary At Gettysburg
- Lutheran Theological Seminary At Philadelphia
- Lutz Franklin School
- Luzerne County Community College
- Lycoming Career And Technology Center
- Lycoming College
- Lydia Darrah School
- Mmi Preparatory School
- Mast Community Charter School
- Madison College
- Madison Elementary School
- Mahanoy Area High School
- Mahanoy Area School District
- Malvern Preparatory School
- Manheim Central High School
- Manheim Central School District
- Manheim Township High School
- Manheim Township School District
- Manor College
- Manor Street Elementary School
- Mapletown Junior Senior High School
- Marian Catholic High School
- Marion Center Area School District
- Marple Newtown School District
- Mars Area High School
- Mars Area Middle School
- Mars Area School District
- Marshall Middle School
- Martin Luther King High School
- Martin Orthopedic School