How much data centre capacity does Madison have?

DC Atlas tracks 6 data centres in the Madison data centre market. 6.8 MW is live, 625 MW is under construction, 170 MW is planned, for 802 MW of total potential at full buildout.

Who are the largest data centre operators in Madison?

5 operators run facilities in the Madison data centre market. Meta is the largest by total potential, with 1 site and 625 MW.

Which utilities supply power to data centres in Madison?

Alliant Energy and Madison Gas & Electric serve the most data centre sites in the Madison data centre market. DC Atlas holds a named power supplier for 50% of the facilities it tracks here.

Madison: 6 sites, 5 operators, 625 MW under construction

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Madison, United States has 6 data centres, 4 operational, spanning 2 sub-markets, 5 operators, 6.8 MW live, 625 MW under construction. Largest by total potential: Meta (1 site), then QTS Data Centers.

Map of 6 data centres in Madison

Every Madison site DC Atlas tracks with a position on record, coloured by status.

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<iframe src="https://dcatlas.io/en/embed/map/market/madison" title="The Madison data center map by DC Atlas" width="100%" height="520" style="border:1px solid #ddd;border-radius:12px" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>

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Live

6.8MW

Under construction

625MW

Planned

170MW

Total potential

802MW

100% of pipeline modelled

Who supplies the power

50% of the data centres we track in the Madison market have a named power supplier

Alliant Energy2sites
Madison Gas & Electric1site

Who is building in Madison

The 5 largest operators here by total potential, of 5 tracked in this market.

Operator	Sites	Live	Total potential
Meta	1	—	625 MW
QTS Data Centers	1	—	170 MW
US Signal	2	5 MW	5 MW
EdgeConnex	1	1 MW	1 MW
Lumen	1	0.8 MW	0.8 MW

Only 50% of the live facilities here carry a commissioning date across too few years, which is too thin to chart as a build history.

Recent activity

3 recorded developments in the Madison market, the latest on 21 Jul 2026.

21 Jul 2026Fire
Fire at Meta data center construction site in Beaver Dam, Wisconsin
A fire occurred at Meta's data center construction site in Beaver Dam, Wisconsin. The incident affected the ongoing construction of the facility. No further details on cause, damage scale, or impact timeline are provided in the headline and summary. This represents a concrete operational incident at a major hyperscaler's data center project.
21 Jan 2026Cancelled$12B
DeForest Village Rejects $12 Billion QTS Data Center After Public Opposition
The Madison suburb of DeForest rejected a proposed $12 billion, 1,600-acre data center project by Virginia-based QTS Data Centers in January 2026 following months of public opposition. The village had negotiated extensive community benefits including $12 million annually in property taxes, $50 million in community infrastructure funding, and protections for neighboring properties, but reversed course after Wisconsin Watch revealed the project had been secretly negotiated for months before public announcement. The decision represented a rejection of what experts characterized as one of the most comprehensive community benefit agreements negotiated for a hyperscale data center project.

All recent activity

Questions about Madison

How many data centres are in Madison?: Madison, United States has 6 data centres, 4 operational, spanning 2 sub-markets, 5 operators, 6.8 MW live, 625 MW under construction. Largest by total potential: Meta (1 site), then QTS Data Centers.
How much data centre capacity does Madison have?: DC Atlas tracks 6 data centres in the Madison data centre market. 6.8 MW is live, 625 MW is under construction, 170 MW is planned, for 802 MW of total potential at full buildout.
Who are the largest data centre operators in Madison?: 5 operators run facilities in the Madison data centre market. Meta is the largest by total potential, with 1 site and 625 MW.
Which utilities supply power to data centres in Madison?: Alliant Energy and Madison Gas & Electric serve the most data centre sites in the Madison data centre market. DC Atlas holds a named power supplier for 50% of the facilities it tracks here.