Sandi with Robotics students, district leadership, and vendor contact

Meet Sandi Castro

Sandi Castro is a lifelong educator with more than 20 years of experience leading classrooms, campuses, and district initiatives. She champions public education and STEM development. She is a seasoned advocate for students, teachers, and families of Texas.

Currently serving as the Travis County Precinct 137 Chair for the Democratic Party and a Texas State Teachers Association (TSTA) Supervisory Delegate for Region 10, Sandi is now lobbying to bring her extensive experience to the Texas Commissioner of Education’s office.

Passing the Mic


What People Say About Sandi:


Johnny Phoenix Cavazos

“I believe in you Ms. Castro.”

An orderly school board meeting room with an empty central podium flanked by neatly aligned microphones, each resting on matte black bases atop a long, light-ash wood dais. Nameplates with simple engraved titles, a small stack of policy binders, and a digital agenda screen in the background displaying “Pflugerville ISD – Place 6” in clear typography create a sense of organized governance. Cool, diffused overhead lighting and soft natural side light from narrow windows produce balanced illumination with minimal glare. The atmosphere is serious yet welcoming, emphasizing transparency and accountability. Composed from a slightly low angle toward the podium, with leading lines along the dais guiding the eye to the center. Sharp focus throughout, photographic realism, clean lines, and a neutral, corporate color palette.


H. Jane Martin

“I support Sandi without hesitation. I have the great fortune to work with Sandi and see her do what’s best for kids. Sandi believes in our future generations. She pours into our community day after day. Sandi Castro fights alongside those that want to make things good and right for our district, city, and state. She leads with humility, knowledge, hard work, and grace. I am proud to giver her my support.