In 1872, he built a schoolhouse and donated to the community, founding what was then called the Sycamore School District.

In 2003 the Orange Unified School District gave territory to Tustin USD.

This school has 4 main focuses, simplified through the acronym TIDE: Technology, Innovation, Design, and Entrepreneurship.

In addition to serving children, the Tustin Unified School District serves education to adults (18 years of age or older) and offers services such as: In 2013, the Tustin Unified School District, under the Measure S taxation of local residents, adopted a technology program for all of its schools.

In their high schools, a Lenovo laptop and Chromebook system were introduced to the students.