Data centers in the Northern Virginia market

About the Northern Virginia market

The directory lists 350 data centers in the Northern Virginia market, more than in any other of the 64 markets it covers and 13 percent of all listings in the United States. Ashburn holds 106 of them, 30 percent of the market, followed by Sterling with 92 and Manassas with 49. Chantilly (20), Leesburg (17) and Herndon (13) come next.

Amazon Web Services has the most listings here, 131, followed by Digital Realty with 32, Equinix with 21, and Centersquare and CloudHQ with 12 each. Colocation sites (163) and hyperscale sites (149) make up most of the list, and 302 records have a building outline mapped in OpenStreetMap.

Operators publish capacity for only a small share of these buildings, and in two different measures that should not be added together. Of the 15 buildings with a published IT load, the largest is CyrusOne's NVA9 in Sterling at 38 MW. Of the 15 with a published utility supply, the largest is Digital Realty IAD39 in Ashburn at 120 MW. By floor area, IAD39 is also the largest listed building, at about 1.0 million square feet.

17 listed facilities are under construction and 1 more is planned, among them CloudHQ's LC5, LC8, LC11, LC12 and LC14. Only 2 facilities in the market hold an Uptime Institute certification, both at Tier III.