operational locality centroid
Ark Data Centers Green Bay
Green Bay city · WI
Documented capacity: 0.25 MW
5 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →Wisconsin / WI
Wisconsin data center and compute infrastructure research
This state has reviewed research coverage from the national 50-state Atlas. Exact project locations are published only after source evidence establishes coordinates; state-level, regulatory, utility and prospective evidence remains visible without inventing map precision.
6reviewed research rows
4confirmed rows
2accepted prospective rows
Animated state view
Wisconsin
State research coverage
Wisconsin is part of the 50-state research coverage.
The current reviewed research set contains 6 accepted evidence records for Wisconsin, including 4 confirmed and 2 accepted prospective rows, with a research cutoff of 2026-08-20. These are evidence records, not a count of unique facilities.
Prospective records remain labeled as proposals, applications, forecasts, targets, queue entries or other non-operational states. The Atlas does not convert state-level or locality evidence into a precise project point unless a controlling source supports that location.
Evidence-backed project locations
Wisconsin project points
Source-exact records use supported coordinates. Dashed rings mark Census address-range geocodes, not rooftop or surveyed coordinates. Qualified research candidates are shown separately at Census locality or county centroids when that is the strongest source-backed geography; those markers do not claim a precise site coordinate.
5 mapped locations
Port Washington (Lighthouse) Data Center CampusPort WashingtonResearch candidate · locality centroid · exact site coordinate not claimed · approvedFour data centers totaling 2.5M sq ft; DNR environmental review; wetlands, stormwater, and air permits; construction-related municipal updates.verified two sourceOpen source →
Documented project / site inventory
31 project, facility, campus or documented site records are tracked for WI.
This project layer combines available project-profile, permit/intent and civic-impact evidence. Records retain unresolved location precision and limitations rather than inventing coordinates.
operational locality centroid
Azure - Wisconsin Mount Pleasant (Fairwater)
Mount Pleasant village · WI
Documented capacity: 338 MW
5 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →proposed or review locality centroid
Dane County Data Exchange 2
Dane village · WI
Documented capacity: 60 MW
5 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →operational state or regional
Data Holdings Data Center
WI
Documented capacity: 8.6 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →proposed or review state or regional
DPO WI
WI
Documented capacity: 20 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →proposed or review locality centroid
DPO Wisconsin Rapids
Wisconsin Rapids city · WI
Documented capacity: 20 MW
5 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →operational state or regional
EdgeConneX MAD01
WI
Documented capacity: 0.5 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →operational locality centroid
Fairwater 1 - Mount Pleasant
Mount Pleasant village · WI
Documented capacity: 1480 MW
5 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →operational state or regional
Harland
WI
Documented capacity: 10 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →operational state or regional
Involta WI Data Center
WI
Documented capacity: 20 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →unknown locality centroid
Lighthouse Campus
Port Washington · WI
Documented capacity: 902 MW
36 linked evidence rows · locality centroid; exact site unresolved
operational locality centroid
Madison
Madison city · WI
Documented capacity: 13.2 MW
10 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →unknown locality centroid
Meta Beaver Dam Data Center
Beaver Dam city · WI
Documented capacity: 220 MW
19 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →unknown locality centroid
Microsoft Mount Pleasant Campus Expansion
Mount Pleasant village · WI
14 linked evidence rows · locality centroid; exact site unresolved
unknown locality centroid
Microsoft Mount Pleasant First Facility
Mount Pleasant village · WI
14 linked evidence rows · locality centroid; exact site unresolved
unknown locality centroid
Microsoft Mount Pleasant Second Facility
Mount Pleasant village · WI
14 linked evidence rows · locality centroid; exact site unresolved
unknown locality centroid
Microsoft Mt. Pleasant
Mount Pleasant · WI
20 linked evidence rows · locality centroid; exact site unresolved
operational locality centroid
Milwaukee (East Wisconsin)
Milwaukee city · WI
Documented capacity: 12 MW
5 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →operational state or regional
MKE1
WI
Documented capacity: 1.6 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →operational state or regional
N15W24250 Riverwood Drive
WI
Documented capacity: 16 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →operational state or regional
Network 222
WI
Documented capacity: 13.2 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →proposed or review state or regional
Nscale NC-1 Data Center
WI
Documented capacity: 40 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →operational state or regional
OFFSITE
WI
Documented capacity: 5 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →unknown locality centroid
Port Washington (Lighthouse) Data Center Campus
Port Washington city · WI
14 linked evidence rows · locality centroid; exact site unresolved
under construction state or regional
Stargate - Lighthouse
WI
Documented capacity: 902 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →unknown locality centroid
Stargate - Port Washington
Port Washington · WI
20 linked evidence rows · locality centroid; exact site unresolved
under construction state or regional
Stargate Wisconsin
WI
Documented capacity: 902 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →under construction state or regional
Stargate Wisconsin (Lighthouse)
WI
Documented capacity: 1000 MW
5 linked evidence rows · coordinate not inferred
Open project evidence record →operational locality centroid
US Signal Madison WI01
Madison city · WI
Documented capacity: 0.15 MW
5 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →operational locality centroid
WIN - Eau Claire Data Center
Eau Claire city · WI
Documented capacity: 1 MW
5 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →proposed or review locality centroid
Wisconsin Rapids Data Center (Papermill Redevelopment)
Wisconsin Rapids city · WI
Documented capacity: 150 MW
5 linked evidence rows · locality centroid; exact site unresolved
Open project evidence record →Public records and supporting context
Development context
These dated decisions, filings, research collections and supporting-infrastructure records provide context. They are not additional data-center facilities.
Public agency starting point
City of Madison Planning Division
City of Madison · Published departmental contact
Contact about: Could you direct us to current development proposals, application materials, staff reports and public meeting records?
Source status: current org page email. Verify the linked public source before relying on an assignment because staff and routing can change.
QTS DeForest annexation decision
2026-02-03 · Annexation petition rejected
DeForest's timeline records rejection of the 1,572.5-acre annexation petition on February 3, 2026, with later scheduled hearings on the described development cancelled or crossed out.
A rejected annexation does not establish that every possible future QTS project is cancelled. The village hall is not a facility site.
State contact routing
Where to start in Wisconsin
Current source-backed route
Applied Population Laboratory
Contact about: Public-facing data, methodological limits and local infrastructure context.
This route was retained from current or recently revalidated public-source evidence.
Who to contact
Public contacts for data center and compute issues in Wisconsin
2 source-backed contact records are available for planning, zoning, permitting, public comments, economic development, project questions and related infrastructure issues. Verify the linked source before relying on a contact because assignments can change.
PUBLIC CONTACT
Data You Can Use team
General team inbox for data questions, ideas for partnership, and professional introductory routing · Data You Can Use
Relevant to: Civic data intermediary · Milwaukee / Milwaukee neighborhoods and communities, with broader peer learning through NNIP
Exchange notes on translating technical infrastructure records and environmental/community indicators into accessible neighborhood data tools, and on adapting data-chat practices for resident learning about data-center siting, broadband, energy, water, and…
Contact details: Data You Can Use team; General team inbox for data questions, ideas for partnership, and professional introductory routing; Data You Can Use; connectwithus@datayoucanuse.org
connectwithus@datayoucanuse.org
Limitation: Do not claim DYCU researches data centers, endorses any siting proposal, represents Milwaukee residents, guarantees collaboration, or has agreed to discuss the project. Do not…
PUBLIC CONTACT
Shared office
Published departmental contact · City of Milwaukee Planning Administration
Relevant to: MUNICIPAL_PLANNING · City of Milwaukee
Could you identify public zoning-change and planned-development case files, staff reports and commission materials?
Contact details: Shared office; Published departmental contact; City of Milwaukee Planning Administration; planadmin@milwaukee.gov
Limitation: Building permits and zoning letters are routed separately through Neighborhood Services.