The staff at Petaluma High includes 72 certificated teachers, four academic counselors, a Project Success counselor, a full-time librarian, a Safe School Support Specialist, three administrators, and 40 classified support staff members.
On April 2, 2012, David Stirrat, who had been an assistant principal at Petaluma High School for nearly 4 years and taught at Casa Grande High School for 11 years, became principal.