78 facilities · 63 cities

Uptime Institute Tier III data centers in United States

Facilities in United States that publish Tier III certification. Concurrently maintainable design: any capacity component can be taken out for service without shutting down IT load. The practical floor for production workloads.

78 of the 1332 facilities we track in United States publish Tier III — 47 operators, 450 MW of published IT capacity, 78 operational. Cities: Quincy, WA, Wise, Phoenix, Manassas, Chicago, Chandler, Elk Grove Village, Irvine, Myrtle Beach, Columbus, Trumbull, Denver, Miami, Huntsville, Eden Prairie, MN, Birmingham, Chaska, MN, Greenville, Akron, Bend, Starkville, Freeport, PA, Miamisburg, Chattanooga, Clifton, Franklin, Allen, Austin, TX (Pflugerville), Duffield, Germantown, Gaithersburg, Omaha, Marshfield, San Antonio, TX, Cincinnati, Secaucus, New Jersey, New Albany, Groveport Ohio, Oklahoma City, Nashville, Boston, Minneapolis, Allen, TX, Tulsa, groveport-ohio, Dallas, Elk Grove Village Illinois, Hillsboro, Harrisonburg Virginia, Harrisburg Pennsylvania, Freeport Pennsylvania, Dresher Pennsylvania, Plymouth Minnesota, Aurora, CO, Alpharetta, elk-grove-village-illinois, Tallahassee, Brooklyn Park, Elk River Minnesota, Colorado Springs, Albany New York, Shreveport, Twinsburg Ohio.

For context, wholesale colocation in United States is benchmarked at $196 per kW per month (CBRE, North America Data Center Trends H2 2025), and commercial electricity at $0.117 per kWh — certification rarely changes the rack rate, but it narrows the shortlist.

See also: all data centers in United States · Uptime Institute Tier III worldwide · colocation pricing