Lammersville Unified School district (LUSD) (formerly known as Lammersville Elementary School District) is a pre-kindergarten through twelfth grade unified school district in Mountain House, California, which serves the area west of Tracy and parts of Alameda County.^[1] The district was created when majority of voters in the Lammersville and Mountain House area passed a measure to separate from Tracy Unified School District in a special election on June 8, 2010.^[2] It became an independent school district on July 1, 2011.^[3]

The district opened a 7,000-square-foot (650.32 m²) new district office on 111 S. DeAnza Blvd.^[4]

Lammersville Elementary School District started out as one-school school district and was established in 1876. Its biggest growth started in 2005 when the Mountain House community was established. Lammersville Joint Unified School District has plans for 12 K-8 schools and one comprehensive high school, with up to 10,000 total students. The district currently serves 7,570 students in the eight K-8 schools (Altamont, Bethany, Cordes, Costa, Hansen, Lammersville, Questa and Wicklund) and Mountain House High School.

• Altamont Elementary School, Mountain House
• Bethany Elementary School, Mountain House
• Julius Cordes Elementary School, Mountain House
• Evelyn Costa Elementary School, Mountain House
• Lammersville Elementary School, Tracy
• Mountain House High School, Mountain House
• Peter Hansen Elementary School, Mountain House
• Sebastian Questa Elementary School, Mountain House
• Wicklund Elementary School, Mountain House

• Lammersville School District