Leadership roles in the San Mateo County Board of Supervisors reshuffled Tuesday as Noelia Corzo was chosen to be president and Ray Mueller as vice president.
The board chambers were packed for the reorganization ceremony, with dozens of leaders from various city councils across the county and county officials in attendance, including District Attorney Steve Wagstaffe and Sheriff Ken Binder.
“It’s my pleasure and honor to move the approval of elevating Supervisor Noelia Corzo to become the board president for 2026 and Supervisor Ray Mueller becoming the board vice president for 2026,” said Supervisor Lisa Gauthier.
Every year, the board chooses a new president and vice president. Tuesday’s reorganization followed a formal procedure that the board adopted in 2023, in which appointments rotate by supervisorial district instead of seniority.
Corzo, who was vice president in 2025, was next in the rotation to become president after Supervisor David Canepa was president last year. Mueller, who represents District 3, was next in line to serve as vice president.
“… I have put my heart and my mind into this role. I’ve worked tirelessly and risen to meet very difficult challenges, some that I could have never foreseen. I am proud of myself.”
Supervisor Noelia Corzo, on being sworn in as board president
The role of board president is a ceremonial position. The president is tasked with leading board meetings, setting meeting agendas, maintaining order in board meetings, setting time restrictions for public comment, and acting as the face of the board.
Corzo was sworn in with her family members by her side. Indigenous community members performed a blessing ceremony for Corzo, who is of Guatemalan and Mayan descent.
She gave a 25-minute speech discussing her personal history and thanking attendees for their support.
“I can confidently say now that I have more than earned my keep in this role,” she said. “I have put my heart and my mind into this role. I’ve worked tirelessly and risen to meet very difficult challenges, some that I could have never foreseen. I am proud of myself.”
Mueller was not sworn in, since county procedure does not require the vice president to take an oath of office. He did not make any remarks regarding his new position.