Where is Facebook's first self-built data center located?

Facebook’s first self-built data center was located in Prineville, Oregon. The facility marked Facebook’s move from relying mainly on leased or outsourced infrastructure toward designing and operating large data centers specifically for its own services.

Facebook began building the Prineville facility in the early 2010s, and the company opened its first custom-built data center there in 2011. Prineville was chosen in part for its cool, dry climate, which helps reduce the energy needed to cool computer equipment. The center also became an early showcase for Facebook’s emphasis on efficient infrastructure.

The Oregon site was part of Facebook’s broader expansion as the social network’s user base and photo, video, and messaging traffic grew rapidly. Facebook later developed additional data centers in places including Forest City, Iowa; Altoona, Iowa; Luleå, Sweden; and Fort Worth, Texas. Prineville is sometimes confused with Facebook’s first office or headquarters, but those were in California. The question concerns the company’s first custom-built data center, not its corporate base.