Grounded Compute

Wisconsin · data as of 1 Nov 2026

Wisconsin: 1.6+ GW of existing data centers. 3.4 GW in the pipeline.

21 projects tracked from county filings, state records and news. Status and permit facts link to their sources.

We haven't yet searched Wisconsin for data center projects beyond the ones we track here.

Get the Wisconsin fileExplore the map
Operating
1.6+ GW
12 projects
Under construction
2.0 GW
3 projects
Planned
1.4 GW
6 projects
Proposed projects; not all will be built.
21
Projects tracked
all stages
10
Counties and cities with a project
see the table below

Projects by stage

StageProjectsMW
Announced2 projects500–1,000 MW
Land & zoning3 projects826 MW
Power secured1 projectunder 100 MW
Under construction3 projects2.0 GW
Operating12 projects1.6+ GW
Total21 projects5.0+ GW

+ = at least. MW includes Grounded Compute research (Q2 2026) where no public source gives a value.

Where the pipeline is

Counties shaded by MW

Marinette CountyWaushara CountySawyer CountyWaupaca CountyManitowoc CountyLincoln CountyTaylor CountyWaukesha CountyMarathon CountyClark CountyPortage CountyWood CountyMenominee CountyGreen Lake CountyRichland CountyRock CountyKenosha CountyMarquette CountyPrice CountyLanglade CountyChippewa CountyBayfield CountyVernon CountyFlorence CountyOzaukee CountyDodge CountyPierce CountyPolk CountySt. Croix CountyColumbia CountyWashburn CountyPepin CountyCalumet CountyOutagamie CountyBuffalo CountyBarron CountyKewaunee CountyIron CountyCrawford CountyBurnett CountyDane CountyDouglas CountyGrant CountyRacine CountyLa Crosse CountyEau Claire CountyMilwaukee CountyJackson CountyDoor CountyOconto CountyLafayette CountyGreen CountyVilas CountyShawano CountyDunn CountyTrempealeau CountyFond du Lac CountyAshland CountyWashington CountyWalworth CountyAdams CountyRusk CountySauk CountyJefferson CountyOneida CountyMonroe CountyForest CountyJuneau CountyWinnebago CountyBrown CountyIowa CountySheboygan CountyWI-OZA-0001 · Under construction · 500–1,000 MWMicrosoft · 4800 90th Street, Mount Pleasant · Operating · 500–1,000 MWWI-RAC-0003 · Land & zoning · 500–1,000 MWWI-RAC-0005 · Under construction · 500–1,000 MWWI-DOD-0002 · Under construction · 100–500 MWWI-DUN-0001 · Announced · 100–500 MWWI-KEN-0001 · Land & zoning · 100–500 MWMicrosoft · Braun Road, Mount Pleasant · Operating · 100–500 MWMicrosoft · 4912 90th Street, Mount Pleasant · Operating · 100–500 MWWI-ROC-0001 · Announced · 100–500 MWark data centers · W6149 Old Highway Road, Menasha · Operating · under 100 MWUS Signal · 5515 Nobel Drive, Fitchburg · Operating · under 100 MWWI-DAN-0002 · Operating · under 100 MWWI-DAN-0003 · Operating · under 100 MWWI-DAN-0004 · Operating · under 100 MWWI-DOD-0001 · Land & zoning · under 100 MWWI-MIL-0001 · Operating · under 100 MWWI-MIL-0002 · Operating · under 100 MWWI-WOO-0001 · Power secured · under 100 MWWI-WOO-0002 · Operating · under 100 MWWI-MIL-0003 · Operating · MW not reportedMicrosoftark data centersUS Signal

21 of 21 projects mapped · locations from our project list · as of 1 Nov 2026

County shading

  • Under 500 MW
  • 500–2,000 MW
  • 2,000+ MW

Data center projects

  • Planned
  • Permitted
  • Under construction
  • Operating
  • Withdrawn

Pin size: MW

Counties with the most MW

+ = at least

Moratoriums

As of 31 Oct 2026, we count at least 46 local data center pauses in force in Wisconsin, no bans and 19 proposals, across its counties, cities and townships. At state level: checked, nothing found.

Wisconsin moratorium tracker: every row with its source

Counties with a project (10)

Counties with 3 or more projects have their own page

CountyProjectsUnder construction or operatingMW
Racine County543.0 GW
Dane County4420 MW
Milwaukee County33under 100 MW
Dodge County21100–500 MW
Wood County21under 100 MW
Calumet County11under 100 MW
Dunn County10100–500 MW
Kenosha County10100–500 MW
Ozaukee County11500–1,000 MW
Rock County10100–500 MW
10 counties2115Calculated
Show all 10

Projects

5 projects named free · 16 more in the Wisconsin file

Developer · addressCountyStageMW rangeDatesID
ark data centers · W6149 Old Highway Road, MenashaCalumet CountyOperatingunder 100 MWFirst recorded 25 Oct 2026WI-CAL-0001
US Signal · 5515 Nobel Drive, FitchburgDane CountyOperatingunder 100 MWFirst recorded 25 Oct 2026WI-DAN-0001
Microsoft · Braun Road, Mount PleasantRacine CountyOperating100–500 MWLast change 31 Oct 2026WI-RAC-0001
Microsoft · 4800 90th Street, Mount PleasantRacine CountyOperating500–1,000 MWLast change 31 Oct 2026WI-RAC-0002
Microsoft · 4912 90th Street, Mount PleasantRacine CountyOperating100–500 MWLast change 31 Oct 2026WI-RAC-0004
Developer and address: in the paid fileDane CountyOperatingunder 100 MWFirst recorded 25 Oct 2026WI-DAN-0002
Developer and address: in the paid fileDane CountyOperatingunder 100 MWFirst recorded 25 Oct 2026WI-DAN-0003
Developer and address: in the paid fileDane CountyOperatingunder 100 MWFirst recorded 25 Oct 2026WI-DAN-0004
Developer and address: in the paid fileMilwaukee CountyOperatingunder 100 MWFirst recorded 25 Oct 2026WI-MIL-0001
Developer and address: in the paid fileMilwaukee CountyOperatingunder 100 MWFirst recorded 25 Oct 2026WI-MIL-0002
Developer and address: in the paid fileMilwaukee CountyOperatingMW not reportedFirst recorded 25 Oct 2026WI-MIL-0003
Developer and address: in the paid fileWood CountyOperatingunder 100 MWFirst recorded 25 Oct 2026WI-WOO-0002
Developer and address: in the paid fileDodge CountyUnder construction100–500 MWLast change 31 Oct 2026WI-DOD-0002
Developer and address: in the paid fileOzaukee CountyUnder construction500–1,000 MWLast change 31 Oct 2026WI-OZA-0001
Developer and address: in the paid fileRacine CountyUnder construction500–1,000 MWLast change 31 Oct 2026WI-RAC-0005
Developer and address: in the paid fileWood CountyPower securedunder 100 MWLast change 31 Oct 2026WI-WOO-0001
Developer and address: in the paid fileDodge CountyLand & zoningunder 100 MWLast change 31 Oct 2026WI-DOD-0001
Developer and address: in the paid fileKenosha CountyLand & zoning100–500 MWLast change 31 Oct 2026WI-KEN-0001
Developer and address: in the paid fileRacine CountyLand & zoning500–1,000 MWLast change 31 Oct 2026WI-RAC-0003
Developer and address: in the paid fileDunn CountyAnnounced100–500 MWLast change 31 Oct 2026WI-DUN-0001
Developer and address: in the paid fileRock CountyAnnounced100–500 MWLast change 31 Oct 2026WI-ROC-0001

16 more projects: names, developers and sources in the Wisconsin file →

Show all 21

FAQ

How many data centers are under construction in Wisconsin?
3 of 21, as of 1 Nov 2026. 12 more operating.
How much data center capacity is in Wisconsin's pipeline?
3.4 GW in the pipeline (2.0 GW under construction, 1.4 GW planned), and 1.6+ GW operating. These are floors: where no public source gives a MW value, the total uses Grounded Compute research (Q2 2026).
Which Wisconsin county has the most data center projects?
Racine County: 5 projects.

Cite this page

Source: Grounded Compute, Wisconsin data centers, 1 Nov 2026. https://groundedcompute.com/us/wisconsin

The Wisconsin file: every tracked project, with its sources

  • Wisconsin file: every project named, with developer and address
  • MW, and source links on status and permit fields
  • Excel workbook + CSV, refreshed monthly
Price set at launchWisconsin · one named user · licences open soonJoin the waitlistFree sample county

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