California data centers:41 sites, 531 MW operating.

Name: California data centers: sites and operators
Creator: AnalystAI

As of 20 October 2026, Real Assets tracks 41 data center sites in California, 5% of the 849 tracked in the United States. Power capacity: 531 MW operating, 2.5 GW planned or under construction (reported for 22 of 41 sites). Most sites: Digital Realty (19), CyrusOne (2), DataBank (2).

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41sites tracked in California

5%of United States sites tracked

16named operators

531 MWpower capacity operating

Operators in California

States compared

How this data is built

Real Assets reads company pages, filings, news and listings, and records figures with a link to the page that published them.

Counts are sites Real Assets has recorded, not a full census, and grow as coverage grows. Sites are listed with the operator as published (the owner for industrial parks). Data updated 20 October 2026.

Questions

How many data center sites are in California?

41 as of 20 October 2026, 5% of the 849 tracked in the United States. This is what we have recorded, not a full census.

Who has the most data center sites in California?

By sites tracked: Digital Realty (19), CyrusOne (2), DataBank (2).

How much power capacity is there in California?

Power capacity: 531 MW operating, 2.5 GW planned or under construction (reported for 22 of 41 sites).

How does California compare with other states?

California ranks number 5 of the 15 largest states by sites tracked. The largest is Texas with 164.

Where does the data come from?

Figures link to the page that published them. Publishers behind Real Assets data include Public Storage, Americold, Unite Students, Inside Self-Storage, Baxtel.

See every site, operator and source

This page is the summary. The workspace has the full list, the map, the deals and the sources behind each figure.

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