California Data Centers

Santa Clara County is the historic center, with major campuses from Equinix, Digital Realty, and CoreSite positioned within miles of Google, Apple, and Meta headquarters. The Los Angeles basin forms a second hub anchored by One Wilshire — a 30-story carrier hotel in downtown LA that connects trans-Pacific submarine cables to terrestrial fiber networks. It is to the Pacific Rim what Ashburn is to the U.S. East Coast. Sacramento has grown as a lower-cost alternative, drawing operators who want Bay Area network proximity without Bay Area real estate prices.

The data center footprint spans 23 counties, heavily weighted toward the Bay Area and Southern California. Santa Clara alone accounts for nearly half of all facilities. Inland counties like Kern and Imperial are attracting renewable-powered builds that pair data centers with dedicated solar arrays.

California’s operator landscape reflects its dual role as both a colocation hub and a tech company headquarters. Equinix and Digital Realty lead with interconnection-dense campuses in Santa Clara, while CoreSite and Vantage serve the enterprise and hyperscale segments. Google, Apple, and Meta operate significant private infrastructure that is often classified as corporate campus rather than traditional data center space.

California’s largest facilities are concentrated in Santa Clara County (2,569 MW). The state’s high electricity costs have pushed the largest planned hyperscale projects to cheaper neighboring states, but California retains significant capacity where latency to tech headquarters and submarine cable landings demands physical proximity.

California’s pipeline faces headwinds that other states don’t. CEQA environmental review can add 12–18 months to permitting, Title 24 energy standards require aggressive efficiency measures, and local water restrictions limit evaporative cooling options in drought-prone regions. These constraints have pushed some hyperscalers to build in neighboring Nevada, Oregon, and Arizona — though proximity to tech headquarters keeps California’s existing base strong. Within the state, 58 facilities are in various stages of development. On September 21, 2026, Governor Newsom signed seven data center bills effective January 1, 2027, including SB 886 (dedicated CPUC tariffs), SB 887 (removes CEQA categorical exemptions), and AB 2469 (water-use disclosure).

Commercial rates through PG&E, SCE, and SDG&E average 18–22¢/kWh — roughly double what operators pay in Texas or Oregon. This cost disadvantage is partially offset by behind-the-meter solar and battery storage, which many facilities now install to reduce grid dependence. The CAISO wholesale market also creates opportunities for data centers to earn revenue through demand response programs by curtailing load during grid emergencies. Despite the premium, operators pay it for the irreplaceable network density and proximity to their engineering teams. Compare current California electricity rates across utilities.