Microsoft said its first data center at its Mount Pleasant, Wisconsin, campus is now operational, marking a milestone a little more than two years after the company announced plans for the site.
The company said on June 23 that construction on the facility has been fully completed. The Mount Pleasant campus is a "Fairwater" data center and part of a multi-building AI cluster.
The project’s progress had surfaced earlier this year when CEO Satya Nadella posted in April 2026 that the site was going live ahead of schedule. At the time, however, it was not clear whether the campus had already become operational or was nearing that point.
Microsoft has been developing in Mount Pleasant for several years after taking over land that Foxconn had been set to use for a manufacturing campus. The company broke ground at 90th Street in 2023.
The original plan called for development across 315 acres, with three large buildings totaling 1.2 million sq ft (111,485 sqm).
Construction of the first facility involved 46.6 miles (74.9km) of deep foundation piles, 26.5 million pounds of structural steel, 120 miles (193km) of medium-voltage underground cable, and 72.6 miles (116.8km) of mechanical piping.
Microsoft later secured approval for another 1,000-acre expansion in 2023 and has since continued buying land for the project, including a 160-acre parcel acquired for $43 million in August last year. In January 2026, the company received approval for an additional 15 data center buildings on the campus.
"With our Fairwater data center now fully operational, Wisconsin is now home to the world’s most powerful supercomputer", said Brad Smith, vice chair and president, Microsoft.
"This campus will help power the next generation of AI innovation globally and provide long-term economic opportunity locally through hundreds of highly skilled jobs and continued investment in the region."
David DeGroot, Village President, added: "This is a historic milestone for Mount Pleasant and all of Racine County as we become home to one of the most advanced technology campuses in the world. Microsoft’s decision to invest here elevates our community into a destination for innovation and advancement."
Microsoft estimates that between 2024 and 2028 it will have invested $4.7bn locally on hyperscale construction in the state.
A second facility in Mount Pleasant is under construction and is expected to be completed in 2028.
Mount Pleasant is in Racine County, about 30 miles (48.2km) south of Milwaukee and 60 miles (96.5km) north of Chicago. Microsoft also launched a Fairwater site in Atlanta, Georgia, in November 2025.
