East Foothills, San Jose East Foothills, San Jose East Foothills is a census-designated place (CDP) in Santa Clara County, California, United States and a neighborhood of San Jose. The population was 8,269 at the 2010 census. The area is more commonly referred to as East San Jose, and is located about 4 miles east of downtown San Jose. This should not be confused with the former city of East San Jose which was annexed by the city of San Jose in 1911. There have remained some unincorporated pockets surrounded by incorporated San Jose which are now part of a city/county agreement to annex the
San Jose, California (which separate the South Bay from the Pacific Coast) flowing north through San Jose, ending in the San Francisco Bay at Alviso. Along the southern part of the river is the neighborhood of Almaden Valley, originally named for the mercury mines which produced mercury needed for gold extraction from quartz during the California Gold Rush as well as mercury fulminate blasting caps and detonators for the U.S. military from 1870 to 1945. East of the Guadalupe River, Coyote Creek also flows to south San Francisco Bay and originates on Mount Sizer near Henry W. Coe State Park and the surrounding