102 datacenter sites are tracked in Illinois, deduplicated from 199 building permits and public facility records: 58 operational and 35 under construction across 28 cities, with $403.4M of construction value on the permits that disclose one.
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Digital Realty · Equinix · DataBank · Lumen · CoreSite · QTS Realty · CyrusOne · Microsoft · Centersquare · EdgeConneX · TierPoint · Cogent · 365 Data Centers · Crown Castle Inc. · Aligned Data Centers · T5 Data Centers · Netrality Data Centers · Stream Data Centers · Colocation America Corporation · NTT and 22 more.
Chicago (36) · Elk Grove Village (17) · Franklin Park (6) · Aurora (5) · Wood Dale (3) · Rochelle (3) · Elk Grove (3) · Northlake (3) · Oak Brook (3)
| Operator / site | City | Status | Construction value | Latest permit |
|---|---|---|---|---|
| CoreSite | Chicago | Operational | $135.9M | 2026-01-21 |
| QTS Realty | Chicago | Operational | $134.6M | 2025-12-11 |
| Digital Realty | Chicago | Operational | $41.0M | 2024-11-05 |
| DataBank, Ltd. | Chicago | Operational | $26.8M | 2024-04-11 |
| HydraVault | Chicago | Under construction | $18.0M | 2026-02-13 |
| CoreSite | Chicago | Operational | $17.9M | 2025-08-19 |
| Digital Realty | Chicago | Operational | $10.5M | 2019-10-05 |
| Netrality Data Centers | Chicago | Operational | $9.0M | 2023-10-18 |
| 1547 Critical Systems Realty | Chicago | Operational | $5.7M | 2022-09-12 |
| TierPoint, LLC | Chicago | Operational | $2.3M | 2016-11-15 |
| AT&T | Chicago | Status unknown | $862K | 2018-05-15 |
| 155 N Michigan Ave | Chicago | Status unknown | $390K | 2024-01-16 |
| Northwestern University | Chicago | Operational | $334K | 2017-02-09 |
| 3140 S Federal St | Chicago | Status unknown | $150K | 2021-02-23 |
| 1868 S Kostner Ave | Chicago | Operational | $75K | 2021-11-22 |
| 2628 S Sacramento Ave | Chicago | Status unknown | $75K | 2021-12-13 |
| 600 E Grand Ave | Chicago | Under construction | $50K | 2024-07-16 |
| Digital Realty | Chicago | Operational | $12K | 2017-04-15 |
| Serverfarm | Chicago | Status unknown | $4K | 2023-08-28 |
| Equinix | Chicago | Under construction | 2025-02-14 | |
| DataBank | Chicago | Status unknown | 2023-06-05 | |
| Compass Datacenters | Hoffman Estates | Under construction | ||
| Aligned Data Centers | Elk Grove Village | Under construction | ||
| CyrusOne | Aurora | Under construction | ||
| CyrusOne | Wood Dale | Under construction | ||
| CyrusOne | Aurora | Under construction | ||
| ALLSTATE DATA CENTER | Rochelle | Under construction | ||
| DIPPER VENTURES LLC MOVED TO 031440ANK | Elk Grove Village | Under construction | ||
| ELK GROVE DATA CENTER LLC | Elk Grove Village | Under construction | ||
| ELK GROVE VILLAGE (CH1-CH2-CH3) DATA CENTER | Elk Grove Village | Under construction | ||
| ELK GROVE VILLAGE (CHI10-11-12) DATA CENTER | Elk Grove | Under construction | ||
| ENSONO DATA CENTER | Downers Grove | Under construction | ||
| Equinix | Elk Grove Village | Under construction | ||
| FRANKLIN PARK (CHI22) DATA CENTER | Franklin Park | Under construction | ||
| Lincoln Rackhouse | Aurora | Operational | ||
| Microsoft | Northlake | Under construction | ||
| Microsoft | Hoffman Estates | Under construction | ||
| NETRALITY DATA CENTER | Chicago | Under construction | ||
| NORTHERN TRUST | Naperville | Under construction | ||
| NTT | Itasca | Under construction | ||
| PRIME DATA CENTERS | Elk Grove Village | Under construction | ||
| Stream Data Centers | Elk Grove Village | Operational | ||
| Stream Data Centers | Elk Grove Village | Under construction | ||
| Equinix | Minooka | Under construction | ||
| Equinix | Elk Grove Village | Operational | ||
| Equinix | Westmont | Operational | ||
| CoreSite | Chicago | Under construction | ||
| Digital Realty | Chicago | Under construction | ||
| FIDELITY INFORMATION SERIVCES | Chicago | Under construction | ||
| TUR VENTURES LLC | MT Prospect | Status unknown | ||
| MOTOROLA, INC | Schaumburg | Status unknown | ||
| DIGITAL GRAND AVENUE 3 LLC | Franklin Park | Under construction | ||
| ADP | Elk Grove Village | Under construction | ||
| Ascent, LLC | Northlake | Operational | ||
| CLOP CAROL STREAM IL LLC | Carol Stream | Under construction | ||
| 360 TCS LLC | Lombard | Under construction | ||
| T5 Data Centers | Elk Grove Village | Operational | ||
| COLOVORE LLC | West Chicago | Status unknown | ||
| Element Critical, LLC | Wood Dale | Operational | ||
| EDGED CHICAGO LLC | Aurora | Under construction | ||
| 2425 BUSSE ROAD LLC | Elk Grove Village | Under construction | ||
| Serverfarm | Oak Brook | Operational | ||
| DEERE & CO | Moline | Under construction | ||
| THE NORTHERN TRUST CO | Rochelle | Under construction | ||
| Printer's Square | Chicago | Operational | ||
| Lumen | Chicago | Operational | ||
| 365 Data Centers | Chicago | Operational | ||
| CoreSite | Chicago | Operational | ||
| Digital Realty | Elk Grove Village | Operational | ||
| CyrusOne | Lombard | Operational | ||
| SBA Edge, LLC | Chicago | Operational | ||
| Lumen | Chicago | Operational | ||
| Netrix LLC | Mount Prospect | Operational | ||
| Netrix, LLC | Alsip | Operational | ||
| Netrix, LLC | Bannockburn | Operational | ||
| Forsythe Data Centers | Elk Grove Village | Operational | ||
| Centersquare | Elk Grove Village | Operational | ||
| DataBank | Mount Prospect | Operational | ||
| TierPoint | Franklin Park | Operational | ||
| US Signal | Oak Brook | Operational | ||
| CyrusOne | Aurora | Operational | ||
| Netrality Data Centers | Chicago | Operational | ||
| Colocation America Corporation | Oak Brook | Operational | ||
| Crown Castle Inc. | Chicago | Operational | ||
| Element Critical, LLC | Wood Dale | Operational | ||
| Centersquare | Lisle | Operational | ||
| Digital Realty | Elk Grove | Operational | ||
| Digital Realty | Elk Grove | Operational | ||
| Cogent | Chicago | Operational | ||
| Cogent | Chicago | Operational | ||
| Stream Data Centers | Elk Grove Village | Operational | ||
| RagingWire Data Centers - NTT | Itasca | Operational | ||
| EdgeConneX | Elk Grove Village | Operational | ||
| Digital Realty | Franklin Park | Operational | ||
| Digital Realty | Franklin Park | Operational | ||
| Digital Realty | Franklin Park | Operational | ||
| Aligned Data Centers | Northlake | Operational | ||
| South Front Networks | Peoria | Operational | ||
| GigeNET | Arlington Heights | Operational | ||
| Cogent | Chicago | Operational | ||
| Quad State Internet LLC | Metropolis | Operational | ||
| Rochelle Municipal Utilities | Rochelle | Operational |
We track 102 datacenter sites in Illinois, deduplicated from 199 building permits and public facility records. Of those, 58 are operational and 35 are under construction. Facility directories report different totals because they count colocation suites and carrier hotels differently, so treat this as what we can evidence from public records rather than a definitive census.
35 sites in Illinois have permits indicating construction is under way, and the permits that disclose a value total $403.4M. Because this comes from building permits rather than press releases, it reflects work that has actually been filed with a local authority.
42 named operators appear in Illinois, including CoreSite, QTS Realty, Digital Realty, DataBank, Ltd., HydraVault, Netrality Data Centers, 1547 Critical Systems Realty, TierPoint, LLC. 64% of sites nationally name an operator; the rest are permits filed by an LLC or contractor we could not resolve to a parent company.
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Open the interactive construction map · US construction report · All operators
Source: Kadoa open data, built from local building permits, public facility records and state utility filings. Free and open. Counts describe what we track, which is not necessarily every facility in existence.