The Almaden Valley is a residential area located in the southern portion of San Jose, named after the historic New Almaden Quicksilver Mines. These mines once produced cinnabar ore and played an important role in California’s mining history before operations ceased in the early twentieth century. Today, the former mining site is preserved as Almaden Quicksilver County Park, operated by Santa Clara County and offering access to trails, open space, and historic features.

Almaden Valley is generally characterized by larger homes on larger lots and a suburban layout without a central downtown core. Most daily retail and grocery services are concentrated along Almaden Expressway and near Blossom Hill Road and Highway 85. The neighborhood is largely car-oriented, contributing to a quieter residential environment.

Outdoor recreation is a major draw in the area. Residents have access to boating and open space near Calero Reservoir, along with extensive hiking and biking trails. Golf options include the public Cinnabar Hills Golf Club, while Almaden Lake Park offers a lake, walking paths, picnic areas, and casual water recreation. Private club options nearby include Almaden Golf and Country Club and The Golf Club at Boulder Ridge.

Housing in Almaden Valley includes single-family homes, condominiums, and townhomes, with single-family residences making up the majority of the neighborhood. The primary zip code for the area is 95120, and most of the developed land falls within San Jose city limits.