How many data centers are in Illinois?

More Than Just Parks tracks 125 active data center facilities in Illinois, each citing a public source: 80 operating, 22 under construction and 23 proposed. 21 more were canceled, withdrawn, suspended or blocked.

Where are the data centers in Illinois?

Illinois's data centers are in 19 counties. The most are in Cook County (75), DuPage County (17) and Kane County (5). The busiest places are around Elk Grove Village, Downers Grove and Dekalb.

How much electricity do Illinois's data centers use?

We don’t publish a state total, and the reason matters: about six in ten facilities here never disclose a capacity, so any sum would look like a census of Illinois's data center load while leaving out the sites that stayed quiet. Each facility page shows the figure its own source states. A single large campus can draw as much power as a small city.

Are Illinois data centers near protected land?

4 of the tracked facilities in Illinois sit within 10 miles of protected public land, measured to the real boundary of the nearest national park, wilderness area, wildlife refuge or conservation area; none sit within a single mile.

Which county in Illinois has the most data centers?

Cook County has the most, with 75 tracked data centers, followed by DuPage County (17) and Kane County (5).

Are there proposed data centers in Illinois?

Yes. We track 23 proposed data centers in Illinois, including Project Cardinal Data Center (Pioneer Development), Monarch Energy Rock Air Data Center and Related Digital Chicago Campus (South Works). 2 of them sit within 10 miles of protected public land.

Who is building data centers in Illinois?

The most active operators in Illinois are CyrusOne (7 sites), Digital Realty (7 sites) and Equinix (7 sites), counted by sites, not megawatts.

125 Data Centers in Illinois (IL): Map, Proposed Sites

Find data centers near you in Illinois

Type your ZIP code or your town and you’ll see what’s proposed, going up and already running near it, and how close each one sits to protected land. A ZIP opens its own page you can bookmark and share.

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Data centers near you in Illinois

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All 35 places in Illinois

Who’s building in Illinois

Proposed data centers in Illinois

23 proposed data centers are on the record in Illinois. By county, then name.

Data centers under construction in Illinois

22 data centers are under construction in Illinois. By county, then name.

Data centers operating in Illinois

80 data centers are operating in Illinois. By county, then name.

Projects stopped or paused

21 proposed projects in Illinois were voted down, withdrawn, canceled or held by a moratorium. Each project’s page links the source for how it ended.

Code-named projects in Illinois

Developers often file under a code name before the company behind a project goes public. These are the ones on the record in Illinois, with the operator where it’s been named.

Closest to protected land

Distance is to the boundary of the nearest protected unit; open a facility to see which.

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Map of data centers in Illinois

Map of the 125 data centers in Illinois tracked by More Than Just Parks, updated November 2026 — Every light is a facility we can tie to a public source, drawn November 2026. Map by More Than Just Parks, free to share and embed with the credit link.

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Every tracked facility in Illinois

125 facilities across 19 counties, the busiest first. Open a county to see its facilities; each one opens its own record.

Cook County 5 proposed 15 under construction 55 operating75

DuPage County 4 under construction 13 operating17

Kane County 1 proposed 4 operating5

Kendall County 3 proposed 2 under construction5

Champaign County 3 operating3

DeKalb County 2 proposed 1 operating3

Grundy County 3 proposed3

Lake County 1 under construction 1 operating2

Peoria County 2 operating2

Boone County 1 proposed1

Project Hawkeye (Belvidere)Unsized

Fulton County 1 proposed1

Canton Data Center and Solar Farm (Donato Solar, West Hickory Street)Edge · 5 MW

Henry County 1 proposed1

Nowak Securities Data Center (former Walworth building)Unsized

Jersey County 1 proposed1

Proposed Bitcoin/Cryptocurrency Data Center (Something New LLC, Jerseyville)Mid-size · 18 MW

Logan County 1 proposed1

Hut 8 Logan Prairie Data CenterCampus · 500 MW

Madison County 1 proposed1

Riverbend Technology Center (Alton Steel Site Data Center)Large · 200 MW

Putnam County 1 operating1

Sangha Systems Hennepin (82 River North)Mid-size · 82 MW

Sangamon County 1 proposed1

CyrusOne Sangamon Data Campus (near Waverly)Campus · 600 MW

Will County 1 proposed1

Blackstone Chicago West CampusCampus · 1.0 GW

Winnebago County 1 proposed1

Monarch Energy Rock Air Data CenterCampus · 1.4 GW

Data centers in Illinois: common questions

How many data centers are in Illinois?: More Than Just Parks tracks 125 active data center facilities in Illinois, each citing a public source: 80 operating, 22 under construction and 23 proposed. 21 more were canceled, withdrawn, suspended or blocked.
Where are the data centers in Illinois?: Illinois's data centers are in 19 counties. The most are in Cook County (75), DuPage County (17) and Kane County (5). The busiest places are around Elk Grove Village, Downers Grove and Dekalb.
How much electricity do Illinois's data centers use?: We don’t publish a state total, and the reason matters: about six in ten facilities here never disclose a capacity, so any sum would look like a census of Illinois's data center load while leaving out the sites that stayed quiet. Each facility page shows the figure its own source states. A single large campus can draw as much power as a small city.
Are Illinois data centers near protected land?: 4 of the tracked facilities in Illinois sit within 10 miles of protected public land, measured to the real boundary of the nearest national park, wilderness area, wildlife refuge or conservation area; none sit within a single mile.
Which county in Illinois has the most data centers?: Cook County has the most, with 75 tracked data centers, followed by DuPage County (17) and Kane County (5).
Are there proposed data centers in Illinois?: Yes. We track 23 proposed data centers in Illinois, including Project Cardinal Data Center (Pioneer Development), Monarch Energy Rock Air Data Center and Related Digital Chicago Campus (South Works). 2 of them sit within 10 miles of protected public land.
Who is building data centers in Illinois?: The most active operators in Illinois are CyrusOne (7 sites), Digital Realty (7 sites) and Equinix (7 sites), counted by sites, not megawatts.

Every facility on this page cites a public record we can link to: industry reporting, facility trackers, company announcements, and local planning and utility filings, cross-referenced against protected public land. Part of the Data Center Tracker from More Than Just Parks. A facility shows a capacity only where its own source states one.

Data centers in Illinois