Data Center Atlas
Microsoft Mount Pleasant Datacenter Campus
Partially operational Under construction
United States · 2 projects · Last reported
Summary
Microsoft Fairwater AI datacenter, Mount Pleasant
Microsoft AI supercomputing campus in Mount Pleasant, Wisconsin, on land originally slated for Foxconn. The first facility (Phase 1, near County Road KR and 90th Street) has three buildings with about 1.2 million sq ft on 315 acres; equipment came online in April 2026 and Microsoft declared it fully operational on 23 June 2026. A second facility of similar scale (Phase 2), immediately adjacent near KR and County Road H, has been under construction since November 2025 with completion scheduled for 2028. Microsoft pledged USD 3.3 billion for the first facility and USD 4 billion more for the second, and calls the site Fairwater.
Source record as of 2026-06-23 · Details and sources
Microsoft Mount Pleasant Second Datacenter Facility
The Village of Mount Pleasant's 28 September 2026 release states that Microsoft's second facility in Mount Pleasant is under construction immediately to the west of the completed first data center, with completion expected in 2028. The expected completion is a forecast; no completion or operation of the second facility is established. evidence
Village of Mount Pleasant, Wisconsin · published 2026-09-28
Location
The interactive map needs JavaScript. Display anchor: 42.67651, -87.91034 (Polygon locator, WGS 84).
View location: OpenStreetMap · Google Maps · Bing aerial · Copernicus Browser
Campus reference; individual project footprints are not mapped.
Projects (2)
Microsoft Fairwater AI datacenter, Mount Pleasant
Partially operational last observed as of · Reported status
Location: Mount Pleasant, Racine County, Wisconsin, US. Microsoft's construction page headings place Phase 1 at 'KR & 90' and Phase 2 at 'KR & H' (County Road KR with 90th Street and County Road H); Spectrum News says the site was originally slated for Foxconn. Coordinates are the OpenStreetMap feature named Microsoft Fairwater AI Datacenter (via Nominatim); OSM maps Phase 2 slightly further west at about 42.6780, -87.9076. Microsoft; Microsoft; Microsoft Local; Spectrum News 1
Use: Ai training, Ai inference
Capacity, investment and other figures
| Measure | Value | Scope | As of | Notes | Sources |
|---|---|---|---|---|---|
| Investment | 3,300,000,000 USD | Announced · Phase · First datacenter (Phase 1) | 2024-05-08 | Announced in May 2024 for spending through the end of 2026; Microsoft later called it the initial investment pledge, with the second datacenter funded separately. | Microsoft; Microsoft On the Issues |
| Investment | 4,000,000,000 USD | Announced · Phase · Second datacenter (Phase 2) | 2025-09-18 | Additional spend over three years on a second datacenter of similar size and scale. | Microsoft On the Issues; W.Media |
| Investment | more than 7,000,000,000 USD | Announced · Campus | 2025-09-18 | Microsoft framed this as its total Wisconsin datacenter investment once the second datacenter is included. | Microsoft On the Issues |
| Power capacity | about 369 MW | Operational · Phase · It load · First facility (Epoch AI Building 1) | 2026-05-15 | Epoch AI modeled estimate of current IT power (timeline entries of April and May 2026), not a company figure. Microsoft has not published a megawatt figure for the site. | Epoch AI |
| Land area | 315 acres | Reported · Phase · First datacenter (Phase 1) | 2025-09-18 | Official Microsoft Blog; W.Media | |
| Buildings | 3 count | Under construction · Phase · First datacenter (Phase 1) | 2025-09-18 | Official Microsoft Blog; W.Media | |
| Floor area | 1,200,000 sq_ft | Under construction · Phase · First datacenter (Phase 1) | 2025-09-18 | Combined floor area under roof of the three Phase 1 buildings. | Official Microsoft Blog; W.Media |
| Jobs permanent | about 550 count | Reported · Phase · First datacenter (Phase 1) | 2026-06-23 | Microsoft; Spectrum News 1 | |
| Jobs permanent | about 800 count | Planned · Campus | 2026-06-23 | Expected once the second facility is fully operational. | Microsoft On the Issues; Microsoft |
| Jobs construction | about 10,000 count | Reported · Phase · First datacenter (Phase 1) | 2026-06-23 | Workers over the two-year build of the first facility; Microsoft's release says nearly 10,000. | Microsoft; Spectrum News 1 |
Companies and organizations
| Name | Role | Notes | Sources |
|---|---|---|---|
| Microsoft | Developer | Microsoft; Microsoft On the Issues; Microsoft | |
| Microsoft | Owner | Epoch AI lists Microsoft as owner. | Epoch AI |
| Microsoft | Operator | Microsoft reports about 550 full-time employees on site at the completed first facility. | Microsoft |
| Walsh Construction | Builder | Named on Microsoft's construction update page for foundation work from November 2023 and as the Phase 2 contractor from November 2025. | Microsoft Local |
| Kiewit | Builder | Named on Microsoft's construction update page in September and October 2024 as a main contractor working along County Road KR and County Road H. | Microsoft Local |
| We Energies | Utility | Microsoft cites a partnership with We Energies, and its February 2024 construction update said We Energies would soon start building a substation on the western part of the parcel. | Microsoft On the Issues; Microsoft Local |
| National Grid Renewables | Power supplier | Partner on a 250 MW Wisconsin solar project announced alongside the campus; a renewable matching arrangement rather than a stated direct feed to the site. | Microsoft |
| NVIDIA | Hardware supplier | Microsoft describes the cluster as built on NVIDIA GB200 servers with Blackwell GPUs. | Official Microsoft Blog |
| OpenAI | Tenant | Reported, not confirmed: Microsoft says its AI datacenters power OpenAI, and Epoch AI lists OpenAI as a likely user of this site. | Official Microsoft Blog; Epoch AI |
Timeline
| Date | Event | Actual or planned | Notes | Sources |
|---|---|---|---|---|
| 2023-07 | Construction started | Actual | Epoch AI dates the start of land clearing to 14 July 2023; Microsoft's update page reported permits received and grading planned from July 2023, with Walsh starting foundation work in November 2023. | Microsoft Local; Epoch AI |
| 2024-05-08 | Announced | Actual | Microsoft | |
| 2024-12 | Paused | Actual | The Associated Press reported that in late December 2024 Microsoft disclosed it was pausing later phases of a large Wisconsin datacenter project. | Associated Press (via News4JAX) |
| 2025-09-18 | Expansion announced | Actual | Second datacenter of similar size announced with an additional USD 4 billion. | Microsoft On the Issues; W.Media |
| 2025-11-01 | Construction started | Actual | Start of Phase 2 work by Walsh Construction at KR and County Road H. | Microsoft Local |
| 2026-04 | First operational | Actual | Microsoft says equipment came online with startup activities in April 2026; Epoch AI lists Building 1 as operational on 16 April 2026. Microsoft declared the first facility fully operational on 2026-06-23. | Microsoft; Epoch AI |
| 2028 | Other | Planned | Scheduled completion of the second facility (Phase 2); Microsoft's construction page says early 2028. | Microsoft; Microsoft Local; Spectrum News 1 |
Power supply
| Type | Description | Sources |
|---|---|---|
| Grid | Grid supply via We Energies; Microsoft said in February 2024 that We Energies would soon start a substation on the western part of the parcel. | Microsoft Local |
| Solar | Microsoft is matching the site with renewable contracts, including a 250 MW solar project in Portage County, Wisconsin, developed with National Grid Renewables and expected to operate in 2027. | Microsoft; Microsoft On the Issues |
Phase 1 and the adjacent Phase 2 are kept in one record because Microsoft describes them as adjacent facilities on one site; the later Durand Avenue and International Drive campuses approved in January 2026 have their own records. Epoch AI's projected figures for this site also fold in a 9-building plan (its Buildings 3-11), so they are not recorded here. The construction page carries month-dated entries only.
Related projects: microsoft mount pleasant durand avenue, microsoft mount pleasant international drive, microsoft fairwater atlanta
Sources for these details
- Microsoft announces $3.3 billion investment in Wisconsin to spur artificial intelligence innovation and economic growth — Microsoft; 2024-05-08
- Made in Wisconsin: The world's most powerful AI datacenter — Microsoft On the Issues; 2025-09-18
- Inside the world's most powerful AI datacenter — Official Microsoft Blog; 2025-09-18 · Archived source
- Microsoft completes construction on first datacenter facility in Mount Pleasant, Wisconsin — Microsoft; 2026-06-23
- Mount Pleasant datacenter project update — Microsoft Local; 2026-07 · Archived source
- Construction complete for first data center facility in Mount Pleasant — Spectrum News 1; 2026-06-23
- Microsoft says it's 'slowing or pausing' some AI data center projects, including $1B plan for Ohio — Associated Press (via News4JAX); 2025-04-09 · Archived source
- Microsoft Fairwater Wisconsin — Epoch AI; 2026-10-05
- Microsoft unveils its largest AI data center yet; to spend US$ 7 billion on Wisconsin facility — W.Media; 2025-09-22 · Archived source
- Companies
- Developer: Microsoft (unknown scope) evidence
- Developer: Microsoft (unknown scope) evidence
- Developer: Microsoft (unknown scope) evidence
- Owner: Microsoft (unknown scope) evidence
- Operator: Microsoft (unknown scope) evidence
- Builder: Walsh Construction (unknown scope) evidence
- Builder: Kiewit (unknown scope) evidence
- Utility: We Energies (unknown scope) evidence
- Utility: We Energies (unknown scope) evidence
- Power Supplier: National Grid Renewables (unknown scope) evidence
- Hardware Supplier: NVIDIA (unknown scope) evidence
- Tenant: OpenAI (unknown scope) evidence
- Tenant: OpenAI (unknown scope) evidence
Source and location review
- Status source
- Microsoft completes construction on first datacenter facility in Mount Pleasant, Wisconsin evidence row
Microsoft · published 2026-06-23 · Company disclosure - Locator
- Project locator · Compiled location reference · site evidence
- Source checks
Not reviewed against imagery not_
reviewed
No imagery review is recorded for this project. Its status rests only on the dated authoritative source. · no independent imagery verificationStatus age at review: 126 days before the data update on 2026-10-27
Microsoft Mount Pleasant Second Datacenter Facility
Under construction last observed as of · Authoritative status update
Source and location review
- Status source
- Village of Mount Pleasant: Mount Pleasant delivers tax relief after Microsoft foregoes incentives evidence row
Village of Mount Pleasant, Wisconsin · published 2026-09-28 · Government record - Locator
- Campus locator · Community mapped · reviewed_openstreetmap_named_microsoft_fairwater_phase_2_construction_area_polygon evidence
- Source checks
Imagery review: uncertain tracked_
identity_ bound_ uncertain_ unsuperseded_ no_ construction_ claim
An imagery review bound to this project was uncertain (image quality or ambiguous change), and no later review supersedes it. No construction, completion or progress claim is made from imagery. · no independent imagery verificationStatus age at review: 29 days before the data update on 2026-10-27
Location details
- Coordinates
- 42.67651, -87.91034
- Geometry licence
- ODbL-1.0
- Use scope
- Campus locator
- Scope class
- reviewed_openstreetmap_named_microsoft_fairwater_phase_2_construction_area_polygon
- Authority
- Community mapped
- Source entity
- Campus
- Method
- openstreetmap_named_construction_area_polygon_as_campus_locator
- Derivation
- cross_source_overlay
- Precision scope
- Contributor-mapped polygon for a named Microsoft Fairwater Phase 2 construction area, used only to locate the Mount Pleasant datacenter campus. It is not an official campus boundary, the complete campus extent, a parcel, a building footprint, the official second-facility footprint, a construction-progress extent, or a survey-accuracy claim.
- Horizontal uncertainty
Not reported
OpenStreetMap does not state horizontal positional accuracy; community-mapped geometry is not a cadastral or survey product.
- Geometry evidence
- ab38ac59
A locator places the site on the map. It is not a building footprint, a construction extent or a surveyed boundary unless the use scope is an official boundary, and even then it is a parcel or permit boundary.
Evidence
Sources are linked, not redistributed; each keeps its own terms. An archived copy is a lookup for the Wayback Machine capture nearest the retrieval date and may be unavailable or differ from what was reviewed. Each hash states what it covers; imported factual records are not publisher-page captures.
| Title | Publisher | Roles | Published | Retrieved | Licence | Attribution | Content hash (SHA-256) |
|---|---|---|---|---|---|---|---|
| Construction complete for first data center facility in Mount Pleasant Archived copy | Spectrum News 1 News | Imported: Geometry, Imported: Record, Imported: Status, Metric: Jobs Construction, Metric: Jobs Permanent, Milestone: Other | source-terms-not-recorded | Spectrum News 1 | d86b8df62ea3002cfdb21a9be25e6dc259a35dd390fce4f8e50d004411dda1dcFactual source record; not the publisher page | ||
| Inside the world's most powerful AI datacenter Archived copy | Official Microsoft Blog Company disclosure | Imported: Record, Metric: Buildings, Metric: Floor Area, Metric: Land Area, Role: Hardware Supplier, Tenant claim | source-terms-not-recorded | Official Microsoft Blog | c3a87a3106e253a526a7807a3b93feecbbf44383540c96c2bf4cf5027c428349Factual source record; not the publisher page | ||
| Made in Wisconsin: The world's most powerful AI datacenter Archived copy | Microsoft On the Issues Company disclosure | Imported: Record, Metric: Investment, Metric: Jobs Permanent, Milestone: Expansion Announced, Power Source: Solar, Role: Developer, Role: Utility | source-terms-not-recorded | Microsoft On the Issues | ad740d4f392cb41c3b7303c7817e39753865f6c34951b2ac83c468d53d8877a8Factual source record; not the publisher page | ||
| Microsoft announces $3.3 billion investment in Wisconsin to spur artificial intelligence innovation and economic growth Archived copy | Microsoft Company disclosure | Imported: Geometry, Imported: Record, Metric: Investment, Milestone: Announced, Power Source: Solar, Role: Developer, Role: Power Supplier | source-terms-not-recorded | Microsoft | d220bbc07c7e1c8a11a16ce3ff82e14bc62a9f274ad046c5b7d14b846a058972Factual source record; not the publisher page | ||
| Microsoft completes construction on first datacenter facility in Mount Pleasant, Wisconsin Archived copy | Microsoft Company disclosure | Imported: Geometry, Imported: Record, Imported: Status, Metric: Jobs Construction, Metric: Jobs Permanent, Milestone: First Operational, Milestone: Other, Role: Developer, Operator claim | source-terms-not-recorded | Microsoft | 8aa48fa63a3268fb5ac45f2e3c2a093c0cec09fea7ec8885e349cad66db35027Factual source record; not the publisher page | ||
| Microsoft completes construction on first datacenter facility in Mount Pleasant, Wisconsin Archived copy | Microsoft Company disclosure | Physical status | all-rights-reserved | Microsoft | 7234fda5abd4dd9da1776fd89bdc85e090636fe908311b480d793aa8a3c05fa0Retained source material; see source provenance | ||
| Microsoft Fairwater Wisconsin Archived copy | Epoch AI Analyst report | Imported: Record, Metric: Power Capacity, Milestone: Construction Started, Milestone: First Operational, Owner claim, Tenant claim | source-terms-not-recorded | Epoch AI | 53f02c11078e39dd9e0f9d16de910ec01cab184f84061fce6e4f0154622ef50bFactual source record; not the publisher page | ||
| Microsoft says it's 'slowing or pausing' some AI data center projects, including $1B plan for Ohio Archived copy | Associated Press (via News4JAX) News | Imported: Record, Milestone: Paused | source-terms-not-recorded | Associated Press (via News4JAX) | b0bfe253dad9d1e92d2f8a2fa9a26516637d628d2c85098f4309ee1e1958d432Factual source record; not the publisher page | ||
| Microsoft unveils its largest AI data center yet; to spend US$ 7 billion on Wisconsin facility Archived copy | W.Media Trade publication | Imported: Record, Metric: Buildings, Metric: Floor Area, Metric: Investment, Metric: Land Area, Milestone: Expansion Announced | source-terms-not-recorded | W.Media | d83bb0ea6ebff1454101e9cba8eb57b1e9b0259d1b8cd2e592818f62cbdca87eFactual source record; not the publisher page | ||
| Mount Pleasant datacenter project update Archived copy | Microsoft Local Company disclosure | Imported: Geometry, Imported: Record, Milestone: Construction Started, Milestone: Other, Power Source: Grid, Role: Builder, Role: Utility | source-terms-not-recorded | Microsoft Local | b134376debf12555a6e88af01a05261f5f09c5aa93d3406e14b806bc2c8dfe64Factual source record; not the publisher page | ||
| OpenStreetMap way 1528490094: Microsoft Fairwater AI Phase 2 Archived copy | OpenStreetMap contributors OpenStreetMap | Geometry | ODbL-1.0 | © OpenStreetMap contributors | c672ce252af90cb782cb8e69152367543054d712f2640e9d3506a13c30ef8197Retained source material; see source provenance | ||
| Village of Mount Pleasant: Mount Pleasant delivers tax relief after Microsoft foregoes incentives Archived copy | Village of Mount Pleasant, Wisconsin Government record | Physical status | public-record-source-terms | Village of Mount Pleasant, Wisconsin | 26cfb44afe2d31a3ced2acb4164695fd263e451a25c076bc67ac18614a711651Retained source material; see source provenance |
Cite this site
Kyars, K. (2026). Microsoft Mount Pleasant Datacenter Campus [site vcc-site-fcc06643c640f5d8cce2]. In Data Center Atlas (2026-10-27) [Data set]. https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-fcc06643c640f5d8cce2/
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