San Martin is an unincorporated community and census-designated place in Santa Clara County, California, in the southern Santa Clara Valley. It lies between the cities of Morgan Hill to the north and Gilroy to the south, along the U.S. 101 corridor that connects the Bay Area to the Central Coast. With a population of about 7,000, San Martin is one of the valley's remaining pockets of open, semi-rural land in a region otherwise known for dense suburban and high-tech development. The community is defined by its agricultural and equestrian character. Ranches, wineries, orchards, and large estate properties spread across the valley floor and into the foothills of the Santa Cruz Mountains to the west. Horse properties are common, and the area's rural zoning has helped preserve a landscape of pastures, vineyards, and mature trees that stands in contrast to the subdivisions of nearby Morgan Hill and Gilroy. Local wineries are part of the broader Santa Clara Valley wine tradition, which dates back decades. San Martin's small commercial center sits along Monterey Road and U.S. 101, with the community's schools, churches, and a few shops serving residents. Because it is unincorporated, governance and services are provided by Santa Clara County, and the community is served by the Morgan Hill Unified School District. For residents, San Martin offers a rural lifestyle with convenient access to the region's employment centers. San Jose and the Silicon Valley campuses lie roughly 15 to 20 miles to the north via U.S. 101, making the community a favored location for those seeking acreage, space, and a quieter pace without leaving the Bay Area entirely. The combination of open land, wineries, and proximity to Silicon Valley gives San Martin a distinctive place in the South Bay.