Maryland
Data centers in Maryland
The Census tracks 3 major data center projects in Maryland, with 3.22 GW of planned capacity: 1 approved, 1 under construction, 1 cancelled.
How many data centers are in Maryland?
The Census tracks 3 major data center projects in Maryland as of Nov 6, 2026: 1 approved, 1 under construction, 1 cancelled. That covers major sourced projects, not every smaller facility. The largest by planned capacity is Quantum Frederick (2.4 GW). Latest change, at Quantum Frederick: County Executive rejects the Frederick Digital Campus DRRA and extends the data center pause through July 1, 2027 (Sep 14, 2026).
- Projects tracked
- 3
- Planned capacity, active projects
- 3.22GW
- Under construction
- 1
- Operating
- 0
Maryland data center projects
| Project | Status | Capacity | Developer | Last update |
|---|---|---|---|---|
| Quantum Frederick Adamstown, Frederick County |
Under construction | 2.4 GW | Catellus Development | Sep 14, 2026 |
| Brightseat Tech Park Landover, Prince George's County |
Approved | 820 MW | Lerner Enterprises | Sep 2026 |
| Calvert Technology Center Lusby, Calvert County |
Cancelled | 500 MW | Amazon (AWS) | Aug 4, 2026 |
Recent changes in Maryland
-
Quantum Frederick MD
County Executive rejects the Frederick Digital Campus DRRA and extends the data center pause through July 1, 2027 Frederick County Government -
Quantum Frederick MD
County receives first draft of the community benefits agreement / DRRA Frederick County Government -
Brightseat Tech Park MD
Council committee unanimously recommends legislation to reinstate detailed site plan review for data centers The Diamondback -
Calvert Technology Center MD
Calvert County government issues a news release saying Amazon Web Services is abandoning its plans for data centers on the Calvert Cliffs Nuclear Power Plant campus Maryland Matters -
Quantum Frederick MD
County Executive signs order pausing new data center permits and approvals through the end of 2026 Maryland Matters -
Brightseat Tech Park MD
County Council approves a two-year moratorium on data center permitting and development The Diamondback -
Quantum Frederick MD
Maryland Supreme Court rules that a citizen referendum on the county's expanded data center zoning must stay off the ballot Maryland Matters -
Calvert Technology Center MD
Calvert County primary election, in which voters push back against hyperscale data centers Maryland Matters -
Calvert Technology Center MD
Amazon reveals it may develop a data center close to the Calvert Cliffs Nuclear Power Plant, according to DatacenterDynamics DatacenterDynamics
About this count
This page counts the major projects the Census has researched and sourced: 3 as of Nov 6, 2026, including 1 cancelled or denied. It does not yet include every smaller colocation or enterprise facility, so the total number of buildings in Maryland is higher. We add projects as they are announced or found in public filings.
Counties with tracked projects
Calvert County · Frederick County · Prince George's County
Community concerns
1 concern documented in public sources about 1 project here →
Moratoriums
-
Brightseat Tech Park MD
County Council approves a two-year moratorium on data center permitting and development The Diamondback
All 5 moratorium actions in Maryland →
Follow Maryland
RSS feed of Maryland changes · Printable fact sheet · Embed this tracker · Projects near a ZIP code · Data center jobs near you
Maryland data centers: common questions
How many data centers are in Maryland?
The Census tracks 3 major data center projects in Maryland as of Nov 6, 2026: 1 approved, 1 under construction, 1 cancelled. This counts large projects the Census has researched and sourced, not every smaller colocation or enterprise facility, so the total number of data center buildings in Maryland is higher.
What is the largest data center project in Maryland?
By published planned capacity, the largest tracked project in Maryland is Quantum Frederick in Adamstown, Frederick County, MD, at 2.4 GW. Its status is under construction.
Are data centers being built in Maryland right now?
Yes. 1 tracked project is under construction in Maryland: Quantum Frederick.
Are there data center moratoriums in Maryland?
The Census moratorium tracker records 5 moratorium actions in 4 jurisdictions in Maryland, most recently in Baltimore County (Sep 22, 2026). Each one, with its source, is on the Maryland moratorium page.
Answers are generated from the sourced project records above and update when a record changes. Open any project for its sources.
Maryland data center report card
- Tracked projects3
- Published capacity3.22 GW
- Under construction1
- Moratorium actions in the tracker5
- Largest: Quantum Frederick2.4 GW
A square image of these figures, sized for Instagram, LinkedIn and slides. It is redrawn whenever a record changes, so the link always shows today’s numbers.
Free to use with credit to Data Center Census (CC BY 4.0).
Cite this page
Last updated Nov 6, 2026. Figures may change as records are updated — include the date you retrieved them.
| APA | Data Center Census. (2026). Data centers in Maryland. Retrieved from https://datacentercensus.com/us/maryland |
|---|---|
| MLA | “Data centers in Maryland.” Data Center Census, Nov 6, 2026, https://datacentercensus.com/us/maryland. |
| Link | https://datacentercensus.com/us/maryland |
Republishing a figure or table? Attribute it to Data Center Census with a link to this page. The underlying data is downloadable as JSON and CSV; the press kit has standing figures and contact details.