![A span of the San Mateo Bridge is shown above still bay waters. The image is in black and white and contained in a light blue circle.](https://cdn.kqed.org/wp-content/uploads/sites/80/2024/01/Bay-Area-San-Mateo-County@2x.png)
San Mateo County
Who do these election results impact?
San Mateo County has a population of 764,442 people. The median age is 41.4, the median household income is $145,388 and 54.1% of residents hold a bachelor’s degree or higher. The most populated cities in the county are Daly City, San Mateo and Redwood City. Source: U.S. Census Bureau