San Diego Metropolitan Transit System (MTS) Email Format
Urban Transit ServicesCalifornia, United States501-1000 Employees
San Diego Metropolitan Transit System (MTS) is the largest provider of public transportation in San Diego County, based in San Diego, California. It serves more than 95 million riders each year through more than 80 fixed-route bus lines and 54 miles of Trolley service. The fleet includes compressed natural gas buses and electric trolleys, and the agency has started testing a zero-emission bus program with a goal to go all-electric by 2040. The system is described as modern and dynamic within North America. Its customers are residents and travelers in San Diego County who rely on public transit for daily mobility and access to work, school, and services. The agency's work supports mobility and environmental goals by enhancing access and service through public transit and greener transportation options. In June 2026, MTS approved an agreement with Eden Housing, Inc. to support a 101-unit affordable housing project on agency-owned land adjacent to a transit center, illustrating collaboration between transit and community development.