How many data centers are in Massachusetts?

More Than Just Parks tracks 48 active data center facilities in Massachusetts, each citing a public source: 44 operating, 0 under construction and 4 proposed. 5 more were canceled, withdrawn, suspended or blocked.

How much electricity do Massachusetts's data centers use?

We don’t publish a state total, and the reason matters: about eight in ten facilities here never disclose a capacity, so any sum would look like a census of Massachusetts's data center load while leaving out the sites that stayed quiet. Each facility page shows the figure its own source states. A single large campus can draw as much power as a small city.

Are Massachusetts data centers near protected land?

21 of the tracked facilities in Massachusetts sit within 10 miles of protected public land, measured to the real boundary of the nearest national park, wilderness area, wildlife refuge or conservation area; none sit within a single mile.

Which county in Massachusetts has the most data centers?

Middlesex County has the most, with 24 tracked data centers, followed by Suffolk County (7) and Hampden County (6).

Are there proposed data centers in Massachusetts?

Yes. We track 4 proposed data centers in Massachusetts, including Holyoke Data Center, Westfield Data Center Campus and AWS Grafton Data Center (Centennial Drive). 2 of them sit within 10 miles of protected public land.

Who is building data centers in Massachusetts?

The most active operators in Massachusetts are Digital Realty (4 sites), Amazon Web Services (3 sites) and TierPoint (2 sites), counted by sites, not megawatts.

48 Data Centers in Massachusetts: Map, List, Proposed Sites

Find data centers near you in Massachusetts

Type your ZIP code or your town and you’ll see what’s proposed, going up and already running near it, and how close each one sits to protected land. A ZIP opens its own page you can bookmark and share.

Know of a data center we’re missing? Tell us.

Who’s building in Massachusetts

Proposed data centers in Massachusetts

4 proposed data centers are on the record in Massachusetts. By county, then name.

Data centers operating in Massachusetts

44 data centers are operating in Massachusetts. By county, then name.

Projects stopped or paused

5 proposed projects in Massachusetts were voted down, withdrawn, canceled or held by a moratorium. Each project’s page links the source for how it ended.

Closest to protected land

Distance is to the boundary of the nearest protected unit; open a facility to see which.

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Map of data centers in Massachusetts

Map of the 48 data centers in Massachusetts tracked by More Than Just Parks, updated October 2026 — Every light is a facility we can tie to a public source, drawn October 2026. Map by More Than Just Parks, free to share and embed with the credit link.

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Every tracked facility in Massachusetts

48 facilities across 8 counties, the busiest first. Open a county to see its facilities; each one opens its own record.

Middlesex County 24 operating24

Suffolk County 7 operating7

Hampden County 2 proposed 4 operating6

Norfolk County 3 operating3

Worcester County 2 proposed 1 operating3

Essex County 2 operating2

Plymouth County 2 operating2

Bristol County 1 operating1

MegaNet Massachusetts Datacenter (Fall River)Small

Data centers in Massachusetts: common questions

How many data centers are in Massachusetts?: More Than Just Parks tracks 48 active data center facilities in Massachusetts, each citing a public source: 44 operating, 0 under construction and 4 proposed. 5 more were canceled, withdrawn, suspended or blocked.
How much electricity do Massachusetts's data centers use?: We don’t publish a state total, and the reason matters: about eight in ten facilities here never disclose a capacity, so any sum would look like a census of Massachusetts's data center load while leaving out the sites that stayed quiet. Each facility page shows the figure its own source states. A single large campus can draw as much power as a small city.
Are Massachusetts data centers near protected land?: 21 of the tracked facilities in Massachusetts sit within 10 miles of protected public land, measured to the real boundary of the nearest national park, wilderness area, wildlife refuge or conservation area; none sit within a single mile.
Which county in Massachusetts has the most data centers?: Middlesex County has the most, with 24 tracked data centers, followed by Suffolk County (7) and Hampden County (6).
Are there proposed data centers in Massachusetts?: Yes. We track 4 proposed data centers in Massachusetts, including Holyoke Data Center, Westfield Data Center Campus and AWS Grafton Data Center (Centennial Drive). 2 of them sit within 10 miles of protected public land.
Who is building data centers in Massachusetts?: The most active operators in Massachusetts are Digital Realty (4 sites), Amazon Web Services (3 sites) and TierPoint (2 sites), counted by sites, not megawatts.

Every facility on this page cites a public record we can link to: industry reporting, facility trackers, company announcements, and local planning and utility filings, cross-referenced against protected public land. Part of the Data Center Tracker from More Than Just Parks. A facility shows a capacity only where its own source states one.

Massachusetts