Datacenter Sites in Massachusetts
Massachusetts has 1,861 scored datacenter candidate sites averaging 54.2/100 DC Readiness. Industrial parcels lead the inventory (1,101 sites). Most sites interconnect through ISO-NE. The state's candidate sites carry a catalogued aggregate of 52.7k MW and average a 4.3 yrs interconnection-queue wait.
At a glance
Massachusetts has 1,861 scored datacenter candidate sites, the 33rd-most of the 50 states, DC and Puerto Rico, averaging 54.2/100 DC Readiness against a national average of 53.0. Its average score ranks 23rd among states. The state also has 28 operating datacenters and 38 internet exchange facilities on record.
How does Massachusetts compare with other states for datacenter sites?
By number of scored candidate sites, Massachusetts ranks 33rd of the 50 states, DC and Puerto Rico (1,861 of 147,272 nationally, 1.3%). Its average DC Readiness of 54.2/100 ranks 23rd and is roughly in line with the national average of 53.0. The average interconnection-queue wait at its sites, 4.3-year, is the 23rd-shortest of the group (national 4.2-year).
Across the five headline sub-scores, Massachusetts is strongest relative to the nation on water (87.8 vs 72.3 nationally) and weakest on speed to power (46.5 vs 50.0). Power and speed to power carry 20% of the score each, fiber 12%, water 7% and hazard 6%.
Which counties in Massachusetts have the most datacenter sites?
Worcester County (283 sites, average 53.4), Middlesex (281 sites, average 56.9), and Essex County (216 sites, average 54.5) hold the largest inventories. Together the top 3 account for 42% of the state's scored sites. Norfolk County has the highest average score among counties with at least 10 sites (58.5/100). 13 counties have five or more scored sites and their own county page.
What kinds of sites and grid regions are in Massachusetts?
Industrial parcels are the largest category (1,101, 59%), followed by substation-adjacent (305) and greenfield (242). Sites span 2 grid regions; ISO-NE covers 100% of them.
By site type
Average sub-score profile
How Massachusetts's candidate sites score on each DC Readiness dimension (0–100 average).
Top 25 datacenter sites in Massachusetts
Ranked by DC Readiness.
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| K STREET | Substation-Adjacent | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 72.4 |
| MYSTIC | Substation-Adjacent | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 72.4 |
| UNKNOWN133485 | Substation-Adjacent | Hampden County | 345 kV | 600 MW | 4.3 yrs | 68.5 |
| UNKNOWN133682 | Substation-Adjacent | Middlesex County | 450 kV | 600 MW | 4.3 yrs | 68.3 |
| KINGSTON STREET | Substation-Adjacent | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 68.2 |
| NORTH CAMBRIDGE | Substation-Adjacent | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 68.1 |
| WAKEFIELD JUNCTION | Substation-Adjacent | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 67.9 |
| TEWKSBURY NO. 22A | Substation-Adjacent | Middlesex County | 345 kV | 600 MW | 4.3 yrs | 67.2 |
| GOLDEN HILLS | Substation-Adjacent | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 67.0 |
| LEXINGTON | Substation-Adjacent | Middlesex County | 345 kV | 600 MW | 4.3 yrs | 67.0 |
| HYDE PARK | Substation-Adjacent | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 66.9 |
| WOBURN | Substation-Adjacent | Suffolk County | 345 kV | 600 MW | 4.3 yrs | 66.9 |
| HOLBROOK | Substation-Adjacent | Norfolk County | 345 kV | 600 MW | 4.3 yrs | 66.7 |
| WEST AMESBURY | Substation-Adjacent | Rockingham County | 345 kV | 600 MW | 4.3 yrs | 66.5 |
| AUBURN STREET | Substation-Adjacent | Norfolk County | 345 kV | 600 MW | 4.3 yrs | 66.5 |
| WALTHAM | Substation-Adjacent | Middlesex County | 230 kV | 300 MW | 4.3 yrs | 66.3 |
| AGAWAM | Substation-Adjacent | Hampden County | 345 kV | 600 MW | 4.3 yrs | 66.2 |
| STOUGHTON | Substation-Adjacent | Norfolk County | 345 kV | 600 MW | 4.3 yrs | 66.2 |
| WEST WALPOLE | Substation-Adjacent | Norfolk County | 345 kV | 600 MW | 4.3 yrs | 66.1 |
| WARD HILL | Substation-Adjacent | Essex County | 345 kV | 600 MW | 4.3 yrs | 65.9 |
| UNKNOWN132928 | Substation-Adjacent | Norfolk County | 345 kV | 600 MW | 4.3 yrs | 65.7 |
| WEST MEDWAY | Substation-Adjacent | Norfolk County | 345 kV | 600 MW | 4.3 yrs | 65.7 |
| BRIDGEWATER | Substation-Adjacent | Plymouth County | 345 kV | 600 MW | 4.3 yrs | 65.6 |
| BERRY STREET | Substation-Adjacent | Norfolk County | 345 kV | 600 MW | 4.3 yrs | 65.6 |
| UNKNOWN133410 | Substation-Adjacent | Providence County | 345 kV | 600 MW | 4.3 yrs | 65.5 |
Counties in Massachusetts
13 counties with five or more scored sites.
Sites in Massachusetts counties with fewer than five sites
3 scored sites sit in counties too small for a county page of their own.
- HATCHVILLE · Dukes County · 53.6
- FALMOUTH · Dukes County · 53.6
- UNKNOWN133714 · Dukes County · 53.5
Operating datacenters in Massachusetts
28 operating datacenter facilities in Massachusetts are on record, the 26th-most of any state. Waltham has the largest cluster (4 facilities). The operators with the most facilities here are Digital Realty (3), Equinix, Inc. (2), Cogent Communications, Inc. (2). Footprints are recorded for 3 of them, totalling about 0.3 million square feet.
Waltham (4)
- Cogent Boston · Cogent Communications, Inc.
- ColoSpace - Waltham, MA · FirstLight Fiber, Inc.
- CyrusOne Waltham · CyrusOne
- Equinix BO1 - Boston, Waltham · Equinix, Inc.
Andover (2)
- TierPoint DC · TierPoint
- Navisite Andover · NaviSite LLC
Billerica (2)
- EdgeConneX Boston (EDCBOS01) · EdgeConneX Inc.
- Equinix BO2 - Boston, Billerica · Equinix, Inc.
Boston (2)
- 230 Congress · RTE Group, Inc.
- Digital Realty Boston · Digital Realty
Somerville (2)
- CoreSite BO1
- CoreSite BO1 · CoreSite
Springfield (2)
- Cogent Springfield MA · Cogent Communications, Inc.
- Lightboard ★ Massachusetts · RJ Greeley Company
Bedford (1)
- Digital Realty BOS (55 Middlesex) · Digital Realty
Cambridge (1)
- Lumen Boston · Lumen Technologies Inc
Chelmsford (1)
- Prov.net CHF1 (Boston North) · Provdotnet LLC
Lowell (1)
- Markley Data Center · Markley Group
Lynn (1)
- EXA CLS Lynn · EXA Infrastructure
Marlboro (1)
- 365 Data Centers Marlboro (MA1) · 365 Data Centers
Marlborough (1)
- BDC1 - 34 Saint Martin Dr · Colocation America Corporation
Medford (1)
- Expedient Boston · Expedient
Needham (1)
- Digital Realty BOS (105 Cabot) · Digital Realty
Northborough (1)
- Iron Mountain Data Center - Boston (BOS-1) · Iron Mountain Data Centers
Rockland (1)
- ColoSpace - Rockland, MA · FirstLight Fiber, Inc.
Wakefield (1)
- 200 Quannapowitt Pkwy · RJ Kelly
Watertown (1)
- Centersquare Boston (BOS4-A) · Centersquare
Worcester (1)
- Crown Castle Worcester (474 Main) · Crown Castle Inc.
Internet exchange and peering facilities in Massachusetts
38 peering and colocation facilities in Massachusetts are listed in PeeringDB. Somerville has the most (4). The best-connected facility hosts 80 networks; the median facility in the state hosts 2 networks.
Boston (4)
- Markley Group One Summer Street Boston · 80 networks
- Crown Castle Boston (1 Summer) · 4 networks
- DataBank Boston (BOS1) · 4 networks
- 230 Congress · 0 networks
Somerville (4)
- CoreSite - Boston (BO1) · 38 networks
- Evocative BOS1 · 9 networks
- Hub Express System · 7 networks
- ColoSpace - Somerville, MA · 1 networks
Springfield (4)
- Lightboard ★ Massachusetts · 7 networks
- Crown Castle Springfield (1 Federal) · 4 networks
- Lightboard ★ New England · 2 networks
- Cogent Springfield MA · 0 networks
Waltham (4)
- Centersquare Boston (BOS1-A) · 5 networks
- Equinix BO1 - Boston, Waltham · 3 networks
- ColoSpace - Waltham, MA · 1 networks
- Cogent Boston · 0 networks
Marlborough (3)
- Crown Castle Marlboro (34 St Martin) · 2 networks
- TierPoint Boston - Marlborough · 2 networks
- BDC1 - 34 Saint Martin Dr · 0 networks
Needham (3)
- Digital Realty BOS (128 1st Ave) · 8 networks
- Digital Realty BOS (105 Cabot) · 3 networks
- LightWave Networks · 0 networks
Andover (2)
- TierPoint Boston - Andover · 2 networks
- Navisite Andover · 1 networks
Billerica (2)
- EdgeConneX Boston (EDCBOS01) · 5 networks
- Equinix BO2 - Boston, Billerica · 2 networks
Bedford (1)
- Digital Realty BOS (55 Middlesex) · 1 networks
Cambridge (1)
- Lumen Boston · 19 networks
Chelmsford (1)
- Prov.net CHF1 (Boston North) · 2 networks
Lowell (1)
- Markley Group Lowell · 1 networks
Lynn (1)
- EXA CLS Lynn · 1 networks
Marlboro (1)
- 365 Data Centers Marlboro (MA1) · 1 networks
Medford (1)
- Expedient Boston · 1 networks
Northborough (1)
- Iron Mountain Data Center - Boston (BOS-1) · 1 networks
Rockland (1)
- ColoSpace - Rockland, MA · 1 networks
Wakefield (1)
- 200 Quannapowitt Pkwy · 1 networks
Watertown (1)
- Centersquare Boston (BOS4-A) · 2 networks
Worcester (1)
- Crown Castle Worcester (474 Main) · 6 networks
Massachusetts datacenter site selection FAQ
How many datacenter sites are in Massachusetts?
GridCensus catalogs 1,861 scored datacenter candidate sites in Massachusetts, with an average DC Readiness score of 54.2/100. That is the 33rd-largest inventory of the 50 states, DC and Puerto Rico.
How many operating datacenters are in Massachusetts?
28 operating datacenter facilities in Massachusetts are on record, the 26th-most of any state. Waltham has the most (4). Digital Realty operates the most facilities in the state (3).
What is the average interconnection-queue wait in Massachusetts?
Candidate sites in Massachusetts average a 4.3-year interconnection-queue wait, with an average queue depth of 19 projects. The national average across all scored sites is 4.2-year, and Massachusetts has the 23rd-shortest average wait of the 50 states, DC and Puerto Rico.
Which county in Massachusetts has the most datacenter sites?
Worcester County has the most scored candidate sites in Massachusetts (283), followed by Middlesex (281) and Essex County (216). Among counties with at least 10 sites, Norfolk County has the highest average DC Readiness (58.5/100).
What kind of datacenter sites are most common in Massachusetts?
Industrial sites are the most common category in Massachusetts (1,101 sites, 59% of the inventory), and most sites fall within the ISO-NE grid region.
How many internet exchange facilities are in Massachusetts?
38 peering and colocation facilities listed in PeeringDB are in Massachusetts. Somerville has the most (4). The best-connected one hosts 80 networks.
Looking for a specific record? The directory lists every scored datacenter site in Massachusetts, A to Z.
More Massachusetts infrastructure
- Electric substations in Massachusetts
- Brownfield and retired power plant sites in Massachusetts
- ISO-NE grid region· 1,859 sites here
- NYISO grid region· 2 sites here
- Industrial sites in Massachusetts· 1,101
- Substation-Adjacent sites in Massachusetts· 305
- Greenfield sites in Massachusetts· 242
- Former Mine sites in Massachusetts· 141
- States ranked by datacenter readiness
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Massachusetts”, https://gridcensus.com/datacenter-sites/massachusetts (data as of November 12, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Massachusetts is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.