San Mateo County Transit District#
Operator Overview#
San Mateo County Transit District is headquartered in San Carlos in the Urbanized Area of San Francisco–Oakland, CA.
This operator provides 97 square miles of public transit service, which has a service population of 765,551.
This organization is a Full Reporter.
Data Source: National Transit Database Annual Agency Information.
Route Typologies#
The following data presents an overview of GTFS characteristics using data from the most recent date of April 2025.
San Mateo County Transit District runs 75 unique routes. Below is the breakdown of the routes and routes can belong to one or more categories.
Route categories are determined using a approach that looks at GTFS trips data alongside National Association of City Transportation Officials (NACTO)’s Transit Route Types and Frequency and Volume guides. Please see the methodology docs for more details on this approach.
Service Area#
San Mateo County Transit District provides 744 miles of public transit in San Francisco County, San Mateo County, Santa Clara County counties. San Mateo County Transit District stops at 1,882 unique stops, totaling to 63,302 arrivals.