POPULATION: 773,244

INCORPORATION DATE: 1856

BOARD OF SUPERVISORS:

• District 1 – Dave Pine
• District 2 – Noelia Corzo
• District 3 – Ray Mueller
• District 4 – Warren Slocum
• District 5 – David Canepa

FORM OF GOVERNMENT: Charter

SAN MATEO. County seat, Redwood City. Created April 19, 1856. The county bears the Spanish name for Saint Matthew. As a place name, St. Matthew appears as early as 1776, and the arroyo, the point and the settlement at the unofficial San Mateo Mission are all so designated on the early maps. Until about 1850, the name appeared as San Matheo.