SamTrans is a public transport agency in and around San Mateo, California, in the San Francisco Bay Area. It provides bus service throughout San Mateo County and into portions of San Francisco and Palo Alto. SamTrans also operates commuter shuttles to BART stations and community shuttles. Service is largely concentrated on the east side of the Santa Cruz Mountains, and, in the central county, I-280, leaving coast-side service south of Pacifica spotty and intermittent.

East Palo Alto is a city in San Mateo County, California, United States. As of the 2020 census, the population of East Palo Alto was 30,034. It is situated on the San Francisco Peninsula, roughly halfway between the cities of San Francisco and San Jose. To the north and east is the San Francisco Bay, to the west is the city of Menlo Park, and to the south the city of Palo Alto. The city is directly north of Palo Alto. East Palo Alto was founded as an unincorporated community and incorporation in July 1983. The two cities are separated only by San Francisquito Creek and, largely, the Bayshore Freeway. The revitalization projects in 2000, and high income high-tech professionals moving into new developments, including employees from Google and Facebook, have begun to slowly eliminate the historically wide cultural and economic differences between the two cities. East Palo Alto and Palo Alto share both telephone area codes and postal ZIP codes.