Data Center Record.

Running Built from one source

Microsoft Mount Pleasant Data Center Campus

Microsoft completed construction of its first data center facility in Mount Pleasant, Wisconsin, with the AI data center campus now fully operational and plans for additional facilities. It is running, as reported June 23, 2026.

How much power it needs, how much water it would use and who would use it have not been disclosed.

Last verified · 5 sources, 1 primary · A skeleton record: built from one source, not yet reviewed in depth by a person. · How to read this page

How to read this page. Every fact links to the source it rests on; a number in brackets is its place in the source list. A figure no source gives reads Not disclosed, and nothing is estimated. Where sources give different figures, each is shown with who gave it, and another source's figure never stands in for the record's own. Entries are added and never overwritten; corrections are listed under What happened.

What is known

Each figure as its source gave it. The number in brackets is its place in the source list.

Land
Not disclosed
Power it would draw
Not disclosed
Water
Not disclosed
Who leads it
Microsoft
as stated by the source
Who would use it
Not disclosed
Jobs once it runs
Not disclosed
Tax each year
Not disclosed
Every field, with who said it and when (Researcher view)

Impact figures

FieldValueWho says soSourceLast verified
How much power it needs Not disclosed
How much water it would use Not disclosed
How loud it would be Not disclosed
Jobs once it runs Not disclosed
Tax it would pay each year Not disclosed

The record's fields

FieldValueWho says soSourceLast verified
Who is building it Microsoft as stated by the source October 4, 2026
Who is constructing it Not disclosed
How much land Not disclosed
Where its power comes from Not disclosed
Grid connection Not disclosed
How it is cooled Not disclosed

The developer's figure is what the company said; what a permit allows is the ceiling a permit sets; measured means observed. Water is in gallons a day or a year, whichever the source stated; a tax claim given as a range shows both ends, each linked to the source that gave it.

Still not public, and where it would show up

The record adds each the day a source gives it. Why these documents.

  • Water useA state water right filing or a water supply agreement.
  • Who would use itA lease announcement or a tenant named in a filing.
  • Power the campus would drawA utility or public service commission docket, an interconnection filing, or an air permit for an on site plant.
  • Jobs and taxAn incentive agreement, a county's economic development filing or a fiscal note.

What happened

  1. · Status: running (source date; the content gives no date of its own)

    Microsoft's first Fairwater datacenter facility in Mount Pleasant is fully operational, with equipment brought online from April and close to 550 full time employees; a second facility next to it is under construction for 2028 [5]

The full Microsoft Mount Pleasant Data Center Campus timeline, in order

11 corrections to this record

Every correction, with its reason

  1. · the kind of source of a history entry

    The source was labeled with the Google News search that found it; it now carries its outlet's tier (the record's rules of 2026-09-23). The link did not change. The day's label corrections.

  2. · the kind of source of a history entry

    The source was labeled with the Google News search that found it; it now carries its outlet's tier (the record's rules of 2026-09-23). The link did not change. The day's label corrections.

  3. · the kind of source of a history entry

    The source was labeled with the Google News search that found it; it now carries its outlet's tier (the record's rules of 2026-09-23). The link did not change. The day's label corrections.

  4. · the draft of a status history row

    Published on a project that was still a draft skeleton and still short of the record's skeleton minimum rule; returned to draft on 2026-09-17 pending the project meeting the rule or a person's approval. The old and new text.

  5. · the draft of a status history row

    Published on a project that was still a draft skeleton and still short of the record's skeleton minimum rule; returned to draft on 2026-09-17 pending the project meeting the rule or a person's approval. The old and new text.

  6. · the draft of a status history row

    Published on a project that was still a draft skeleton and still short of the record's skeleton minimum rule; returned to draft on 2026-09-17 pending the project meeting the rule or a person's approval. The old and new text.

  7. · the draft of a status history row

    Published on a project that was still a draft skeleton and still short of the record's skeleton minimum rule; returned to draft on 2026-09-17 pending the project meeting the rule or a person's approval. The old and new text.

  8. · the effective at of a status history row

    Dated from its source: the row's own text states "June 18 update" The old and new text.

  9. · the effective at of a status history row

    Dated from its source: the row's own text states "April 15 update" The old and new text.

  10. · the effective at of a status history row

    Dated from its source: the article says the suit was filed "Wednesday"; published Thursday July 2, 2026, so Wednesday is July 1, 2026 The old and new text.

  11. · the effective at of a status history row

    Dated from its source: the article's own publish date The old and new text.

Every correction on the record is on the corrections page.

The site

The pin is the site, as the EPA's facility record places it. Location from an EPA air permit.

  • This record: Running, ringed
  • data center
  • Smaller pins: 6 other published records in Wisconsin
Details
  • this record's location, ringed
  • parcel outline, from the county parcel record
  • city limits, U.S. Census Bureau, on a town level record
  • county boundary

The other pins are the published projects in the same state, each in its stage color. The imagery beneath is the USGS national orthoimagery, public domain, shown so the land around the site can be read.

Where
4800 90TH ST, Mount Pleasant, WI 53403, Mount Pleasant, Racine County, Wisconsin [source]
How exactly it is located
Exact, the point of the EPA's facility record
The parcel
No parcel outline in the public record
Nearest homes
Not computed for a record placed at a place center

Keep going

The county Racine County 2 projects on the record. The state Data centers in Wisconsin Every Wisconsin project, the rules on the record and what comes next.

Questions about this project

4 questions answered from the record

Answered from the rows on this page.

Who is building Microsoft Mount Pleasant Data Center Campus?

Microsoft is the developer. No construction contractor is named on the record yet.

How much power and water does Microsoft Mount Pleasant Data Center Campus say it needs?

Power: not disclosed by any source on file. Water: not disclosed by any source on file.

What has Mount Pleasant or Racine County decided about it?

No decision by Mount Pleasant or Racine County about data centers is on the record. The Racine County page and the Wisconsin scorecard list every rated row the day a person publishes one.

Sources

Primary documents first: filings, minutes, dockets and official pages. Then reporting. The numbers are the ones the entries above cite.

Primary documents

  1. EPA ECHO detailed facility report: Microsoft Corporation, Mke 3B Data Center, U.S. Environmental Protection Agency

Reporting

  1. Microsoft’s Wisconsin AI Data Center Campus Now Fully Operational - Data Center Knowledge, Data Center Knowledge, June 24, 2026, trade press
  2. Microsoft finishes construction of Mount Pleasant data center, plans for more - WPR, WPR, June 23, 2026, local outlet
  3. Microsoft sued over noise complaints at new Mount Pleasant data center facility - WPR, wpr.org, local outlet
  4. Microsoft completes construction on first datacenter facility in Mount Pleasant, Wisconsin - Microsoft Source, Microsoft Source, June 23, 2026, local outlet

5 sources on file.

Cite this record

Data Center Record, "Microsoft Mount Pleasant Data Center Campus", https://datacenterrecord.org/projects/microsoft-mount-pleasant-data-center-campus-wi, last verified October 4, 2026.

Last verified , first recorded . Every correction is logged on the corrections page and under What happened.

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Cite this page

Data Center Record, "Microsoft Mount Pleasant Data Center Campus", https://datacenterrecord.org/projects/microsoft-mount-pleasant-data-center-campus-wi. Data: Data Center Record, datacenterrecord.org, CC BY 4.0.

The structured rows are CC BY 4.0. Link to this page; that is what turns a reuse into a citation. Prose stays under copyright.

Report a change
For researchers
Slug
microsoft-mount-pleasant-data-center-campus-wi
Status value
operational
Stage
Running
Tier
skeleton
Tags
skeleton
Place id
us/wi/racine-county/mount-pleasant
Coordinates
42.676198, -87.8947
Location precision
permit_point
Location source
https://echo.epa.gov/detailed-facility-report?fid=110071538060
Coordinate source
https://echo.epa.gov/detailed-facility-report?fid=110071538060
Location source number
[1]
Location last verified
October 4, 2026
EPA registry id
110071538060
Use type values
not_disclosed
Tenancy value
not_disclosed
Cooling type value
not_disclosed
Capacity basis
not_disclosed
Water basis
not_disclosed, gallons_per_day
Acreage basis
Not disclosed
Interconnection value
not_disclosed
Capacity, if disclosed
Not disclosed
Rating of the county's rows
Not disclosed
Published
2026-09-04
Last verified
2026-10-04