Data centers in the Chicago market

About the Chicago market

The directory lists 98 data centers in the Chicago market, 10th among the 64 markets it covers and 4 percent of all listings in the United States. They are run by 33 operators in 21 towns and cities. Chicago itself holds 35 of them, 36 percent of the market, followed by Elk Grove Village with 22, Aurora with 10 and Northlake with 5.

No operator dominates the list. Digital Realty has the most listings, 9, followed by CyrusOne and Centersquare with 7 each and Equinix with 6. Colocation sites account for 69 of the records.

Capacity is published in two measures that should not be added together. Of the 10 buildings with a published IT load, the largest is NTT's CH1 in Itasca at 36 MW, followed by NTT's CH3 at 32 MW. Of the 9 with a published utility supply, the largest is Digital Realty ORD10 in Chicago at 109 MW. ORD10 is also the largest listed building by floor area, at about 1.0 million square feet.

Iron Mountain CHI-1 is the one listed facility recorded as under construction; 3 are recorded as operational and 94 carry no status in the data. 3 facilities hold an Uptime Institute certification, all at Tier III.