Data Centers in Wisconsin

17 in OSM snapshot
14 existing
3 planned or building

Key takeaways

This page lists 17 facilities in Wisconsin from our OpenStreetMap snapshot, not an official census.
Each point has an OpenStreetMap source link and the date this snapshot was checked.
The map can miss sites that are not tagged in OpenStreetMap.
Electricity and water effects depend on local utilities and permits; this dataset does not include a local bill or withdrawal figure.
Use the questions guide before relying on a pin at a hearing.

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Legend

Existing — operating
Building — under construction
Planned — proposed or applied
Unknown — confirm

This map can be incomplete or out of date. datacenternear.com is an independent, unofficial site. It is not affiliated with data-center operators, utilities, or public agencies. Information only — not legal, financial, or engineering advice.

Electricity impact

Demand pressure is possible

Whether a nearby facility affects household rates depends on the utility and on who pays for upgrades. This dataset does not include a local bill figure for this place.

Read the sourced national studies and regulatory examples.

What this could mean locally

Cooling water

Cooling water is a local question

On-site cooling water varies by design. This dataset does not include a local withdrawal figure for this place.

On-site and electricity-related water are measured separately in the cited research.

How water use is measured

Facilities in Wisconsin in this OpenStreetMap snapshot (17 in this dataset)
Facility	Locality	Status	Source / checked
Involta	Calumet County, WI	Existing	OpenStreetMap · 2026-11-09
Unnamed data center	Columbia County, WI	Existing	OpenStreetMap · 2026-11-09
Lumen Madison 1 Data Center	Dane County, WI	Existing	OpenStreetMap · 2026-11-09
Unnamed data center	Madison, Dane County, WI	Existing	OpenStreetMap · 2026-11-09
Meta Beaver Dam Data Center	Dodge County, WI	Building	OpenStreetMap · 2026-11-09
West Wisconsin Telcom	Menomonie, Dunn County, WI	Existing	OpenStreetMap · 2026-11-09
Marquette-Adams Telephone Coop	Marquette County, WI	Existing	OpenStreetMap · 2026-11-09
Data Holdings Data Center	Milwaukee, Milwaukee County, WI	Existing	OpenStreetMap · 2026-11-09
Expedient Milwaukee	Franklin, Milwaukee County, WI	Existing	OpenStreetMap · 2026-11-09
TierPoint Milwaukee	Milwaukee, Milwaukee County, WI	Existing	OpenStreetMap · 2026-11-09
Port Washington (Lighthouse) Data Center Campus	Ozaukee County, WI	Building	OpenStreetMap · 2026-11-09
Microsoft Fairwater AI Datacenter	Racine County, WI	Existing	OpenStreetMap · 2026-11-09
Microsoft Fairwater AI Phase 2	Racine County, WI	Building	OpenStreetMap · 2026-11-09
Microsoft Fairwater Phase 2	Racine County, WI	Existing	OpenStreetMap · 2026-11-09
Unnamed data center	Racine County, WI	Existing	OpenStreetMap · 2026-11-09
Unnamed data center	Racine County, WI	Existing	OpenStreetMap · 2026-11-09
Pewaukee Data Center	Waukesha, Waukesha County, WI	Existing	OpenStreetMap · 2026-11-09