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Data center campus · Aurora, along Interstate 88, DuPage County, Illinois

CyrusOne Aurora campus (CHI1-CHI3)

Operating as of Oct. 22, 2026

CyrusOne's three-building, 114 MW campus in Aurora, built around the data center it bought from CME Group in 2016. Also known as: CyrusOne Aurora CME, CHI1, CHI2, CHI3.

Cite← Illinois data centers
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Power114MW reported · stated
Floor area450,000sq ft
Site16acres
IT load114MW

Who is behind it

ProjectCyrusOne Aurora campus (CHI1-CHI3)Also: CyrusOne Aurora CME, CHI1, CHI2, CHI3
Developer and teamCyrusOne
End userCME Group (anchor tenant under a 15-year lease from 2016)

The record, newest first

  1. CyrusOne's Aurora page lists CHI1-CHI3 with 114 MW of IT capacity on 16 acres. (CyrusOne, Oct. 22, 2026)

  2. Illinois DCEO approved CyrusOne (C1 Chicago) in Aurora for the Data Center Investment Program with a $250 million commitment. (Illinois Department of Commerce and Economic Opportunity, 2026)

  3. CyrusOne announced plans for a 500,000-square-foot expansion on about 15 acres of land included in the purchase, with CME staying as anchor tenant. (Data Center Dynamics, May 11, 2016)

  4. CyrusOne bought CME Group's 428,000-square-foot Aurora data center for $130 million. (Data Center Dynamics, March 16, 2016)

Conflicts and open questions

  • No street address in any opened source; coordinates approximate for the Diehl Road / I-88 corridor in Aurora, which the Census geocoder places in DuPage County.

The full record

Power note
Total IT capacity of the three buildings as stated on CyrusOne's Aurora page.
Evidence
Primary public records
Size class
50 MW or more (tracker scope)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.