Data centers in Loudoun County, Virginia

Loudoun County has 15 data centers on the record: 15 running. Loudoun County limits new data centers. The latest decision on the record: Virginia Loudoun County moved future projects to special exception process, September 23, 2026.

1 site the EPA's registry shows and no record has verified is on the map apart from the count. What not yet verified means.

Updated October 6, 2026 · Every line below links to its source · How the record works

How to read this page. Every count comes from the records on this page and links to where it is counted. Nothing is published until a person reads its source, and a figure no source gives reads Not disclosed; nothing is estimated. A rating changes only when a person sets it.

The 15 data centers in Loudoun County

Newest activity first

Each row is one site with its stage, its latest dated entry and what its sources disclose. A figure no source gives reads Not disclosed.

Running Built from one source
STACK NVA06
Leesburg, Loudoun County · STACK Infrastructure
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
Aligned Data Centers Ashburn
Ashburn, Loudoun County · Aligned Data Centers
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
Cologix Ashburn
Ashburn, Loudoun County · Cologix
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
STACK Infrastructure Sterling
Sterling, Loudoun County · STACK Infrastructure
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
CyrusOne Sterling
Sterling, Loudoun County · CyrusOne
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
Aligned IAD-03
Sterling, Loudoun County · Aligned Data Centers
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed

Show all 15Show the first 6

Running Built from one source
Compass Loudoun County campus
Loudoun County · Compass Datacenters
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
Digital Realty Ashburn
Ashburn, Loudoun County · Digital Realty
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
Equinix Ashburn
Ashburn, Loudoun County · Equinix
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
Google Loudoun County data center
Loudoun County · Google
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
H5 Ashburn
Ashburn, Loudoun County · H5 Data Centers
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
Oracle Ashburn cloud region
Ashburn, Loudoun County · Oracle
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
QTS Ashburn 3
Ashburn, Loudoun County · QTS Data Centers
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
QTS Data Centers Sterling
Sterling, Loudoun County · QTS Data Centers
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed
Running Built from one source
Vantage Data Centers Ashburn
Ashburn, Loudoun County · Vantage Data Centers
No dated entry on the record yet.
Land
Not disclosed
Power
Not disclosed
Water
Not disclosed
Tenant
Not disclosed

1 site not yet verified, apart from the count

Microsoft Blue Ridge (IAD11-12-13) Data CenterAldie, Loudoun CountyNot yet verified

Where

15 data centers in Loudoun County: 15 running, 1 not yet verified. A dashed edge means the exact site is not in the public record (12 of 15).

The outline is Loudoun County's boundary from the U.S. Census Bureau. Tap a pin for that data center's facts and a link to its page.

The cities in Loudoun County on the record (4)

3 of 4 cities have a record. A city without one is listed, not linked, until its first published record. No city in Loudoun County has a rule, a statement by an official or a rating on the record yet.

City	Projects
Ashburn	8
Sterling	4
Leesburg	1
Aldie	0

What Loudoun County has decided

1 body, 4 decisions on the record

What the county and the cities in it have done about data centers: each body on its own row with its rating, open, case by case, restrictive or closed, never good or bad, and every vote, ordinance, moratorium or agreement behind its toggle, newest first, with its source.

Reported: the source's date; the item names no day of its own. A month with no day: the source names the month and not the day.

Loudoun Countycounty
Virginia Loudoun County moved future projects to special exception process, reported September 23, 2026.
commercialobserver.com local outlet
restrictive
4 acts on this row
1. Reported Sep 23event
  Virginia Loudoun County moved future projects to special exception process
  commercialobserver.com local outlet
2. Reported Sep 16moratorium
  Loudoun County Board of Supervisors voted 7-1-1 to direct staff to prepare a 12 month pause resolution on data center and substation applications, effective September 15, 2026.
  yahoo.com national outlet
  Also reported by 11 sources
  - virginiamercury.com local outlet
  - fox5dc.com local outlet
  - wamu.org local outlet
  - bondbuyer.com local outlet
  - nbcwashington.com local outlet
  - washingtonexaminer.com national outlet
  - bisnow.com trade press
  - wjla.com local outlet
  - investors.com national outlet
  - datacenterdynamics.com trade press
  - theregister.com trade press
3. March 2025ordinance
  Phase one of Loudoun County data center policy overhaul was approved in March 2025 and ended by right data center development except for already approved projects
  patch.com local outlet
4. 2024event
  Loudoun County Board of Supervisors launched data center policy review project in 2024
  patch.com local outlet
Last verified September 23, 2026.

The rules across Virginia.

What happened

Reported September 23, 2026 · Loudoun County

Scorecard event: Virginia Loudoun County moved future projects to special exception process commercialobserver.com local outlet
Reported September 16, 2026 · Loudoun County

Moratorium: Loudoun County Board of Supervisors voted 7-1-1 to direct staff to prepare a 12 month pause resolution on data center and substation applications, effective September 15, 2026. yahoo.com national outlet
March 2025 · Loudoun County

Ordinance: Phase one of Loudoun County data center policy overhaul was approved in March 2025 and ended by right data center development except for already approved projects patch.com local outlet
2024 · Loudoun County

Scorecard event: Loudoun County Board of Supervisors launched data center policy review project in 2024 patch.com local outlet

Virginia, year by year · Every milestone, by month

Nearby counties with records

24 miles away Manassas city 4 data centers on the record 26 miles away Fairfax County 2 data centers on the record 27 miles away Prince William County 1 data center on the record 45 miles away Culpeper County 1 data center on the record

Every Virginia county.

Disclosed figures

nothing disclosed by 15 records

Power, water, jobs and tax, summed only where a data center disclosed the figure; what each facility is for; how each is cooled. Nothing here is estimated.

Power, water, jobs and tax

Figure	Disclosed total	Not disclosed
Power	Not disclosed	16	Not disclosed by any of the 16 records
Water, stated per day	Not disclosed	16	Not disclosed by any of the 16 records
Water, stated per year	Not disclosed	16	Not disclosed by any of the 16 records
Permanent jobs	Not disclosed	16	Not disclosed by any of the 16 records
Tax each year	Not disclosed	16	Not disclosed by any of the 16 records

Summed only where a record disclosed the figure; a record with no figure adds nothing and is counted as not disclosed. Water is summed per day and per year separately, as the sources stated it, and never converted. A tax claim given as a range is summed at both ends.

By what the facilities are for

Use	Records	Power	Water	Jobs	Tax each year
Not disclosed	16	Not disclosed	Not disclosed	Not disclosed	Not disclosed	Not disclosed: power, water, jobs, tax each year

A record that lists several uses counts once under each. Each cell is the sum over the records with that use, disclosed rows only.

Third party figures on the same metrics

Numbers from outside sources on the same metric and place. A figure a project disclosed about itself is in the sums above, not here. Where several sources give the same figure for the same place and year, it is one row with every source behind it (61 sources on 55 rows).

Power

30,000,000 megawatt hoursVirginia, statewide, 2026Virginia commercial electricity sales increased by nearly 30 million megawatt hours between 2019 and 2025, largely driven by data center concentration. Law Commentary (lawcommentary.com)
100 GWNorthern Virginia, VA, 2026According to Duke University research, if large new loads trim consumption for less than half a percent of hours annually, the grid could absorb roughly 100 GW of new demand years sooner. Utility Dive (utilitydive.com)
85 GWVirginia, statewide, 2026Virginia is the largest data center market in the world with nearly 85 gigawatts of contracted electric power requests in the pipeline. Richmond Times-Dispatch (richmond.com)
68 GWVA, 2026RAND estimates AI data centers could need 68 gigawatts of power worldwide by 2027, up from 88 gigawatts of total global data center capacity in 2022. MarketScale (marketscale.com)
19 gigawattsWest Virginia, WV, 2026West Virginia has thirteen data center projects in planning or construction representing more than $24 billion in announced investment and nearly 19 gigawatts of power capacity. Charleston Gazette-Mail (wvgazettemail.com)
17,378 MWRichmond, Virginia, 2026Virginia has 371 operating data centers with combined capacity of 17,378 megawatts and 459 planned projects adding 37,627 megawatts. Style Weekly (styleweekly.com)
8 GWMason County, West Virginia, 2026Monarch Compute Campus has potential for up to 8GW capacity. Data Center Dynamics (datacenterdynamics.com)
2.16 GWPoint Pleasant, West Virginia, 2026Facility will have 2.16 gigawatts capacity. herald-dispatch.com (herald-dispatch.com)
1.35 GWMason County, West Virginia, 2026Microsoft signed on for 1.35GW capacity at Monarch Compute Campus. Data Center Dynamics (datacenterdynamics.com)
1.3 GWWest Virginia, WV, 2026Monarch Compute Campus in Mason County is 1.3 gigawatts. Charleston Gazette-Mail (wvgazettemail.com)
1,000 MWVA, 2026A 100 megawatt data center would have ranked among the largest projects a couple of years ago; today projects over 1,000 megawatts set the benchmark. Construction Dive (constructiondive.com)
900 MWHanover County, VA, 2026Data center campus capacity claimed at 900MW. Data Center Dynamics (datacenterdynamics.com)
600 MWWest Virginia, WV, 2026A Berkeley data center campus project will draw 600 megawatts and occupy 548 acres with $4 billion investment. Charleston Gazette-Mail (wvgazettemail.com)
300 MWBotetourt County, VA, 2026Google will have a peak electricity demand of approximately 300 megawatts at the Botetourt County data center campus. Cardinal News (cardinalnews.org)
77 percentVA, 202677% of data center capacity under construction is in frontier markets, not traditional hubs. Bisnow (bisnow.com)
70 percentVA, 2026AI could account for about 70 percent of global data center capacity demand by 2030, according to McKinsey. CNBC (cnbc.com)
13 percentLoudoun County, VA, 2026Northern Virginia has the largest data center market in the world and home to roughly 13% of global operational capacity. Fox News (foxnews.com)
2.5 MWPoint Pleasant, West Virginia, 2026Each generator will produce 2.5 megawatts of electricity. herald-dispatch.com (herald-dispatch.com)

Water, stated per day

80,000,000 gallons per dayWashington metropolitan area, Potomac River basin (VA, MD, DC), 2050consumptive water use, data centers, projected peak day 2050, stated as over. Interstate Commission on the Potomac River Basin, Data Centers and Water Use in the Potomac River Basin (March 2026) (potomacriver.org)
22,000,000 gallons per dayWashington metropolitan area, Potomac River basin (VA, MD, DC), 2050consumptive water use, data centers, projected average day 2050. Interstate Commission on the Potomac River Basin, Data Centers and Water Use in the Potomac River Basin (March 2026) (potomacriver.org)
5,000,000 gallons a dayWest Virginia, statewide, 2026
2 sources
- Data centers can use up to 5 million gallons of drinking water a day. wchstv.com (wchstv.com)
- Some data centers can use up to 5 million gallons of drinking water a day. The Herald-Dispatch (herald-dispatch.com)
1,000,000 to 5,000,000 gallons per dayVirginia, statewide, 2026A single conventional hyperscale data center facility can consume between 1 million and 5 million gallons of water per day. washingtonexaminer.com (washingtonexaminer.com)
15,000,000 gallons per dayWashington metropolitan area, Potomac River basin (VA, MD, DC), 2025consumptive water use, data centers, peak day 2025. Interstate Commission on the Potomac River Basin, Data Centers and Water Use in the Potomac River Basin (March 2026) (potomacriver.org)
4,000,000 gallons per dayWashington metropolitan area, Potomac River basin (VA, MD, DC), 2025consumptive water use, data centers, average day 2025. Interstate Commission on the Potomac River Basin, Data Centers and Water Use in the Potomac River Basin (March 2026) (potomacriver.org)

Water, stated per year

469,000,000,000 to 844,000,000,000 gallons a yearVirginia, statewide, 2026Scientists at Lawrence Berkeley National Laboratory project U.S. data center water usage might grow to between 469 billion and 844 billion gallons by 2028. Charlottesville Tomorrow (cvilletomorrow.org)
17,000,000,000 to 35,000,000,000 gallons per yearVirginia, statewide, 2026Direct data center water consumption across the United States totals an estimated 17 to 35 billion gallons annually. washingtonexaminer.com (washingtonexaminer.com)

Permanent jobs

96,000,000,000 dollars and jobsWest Virginia, statewide, 2026West Virginia has generated approximately 96 billion dollars in private sector investment and more than 19,000 projected jobs. Conduit Street Blog (conduitstreet.mdcounties.org)
17,000 jobsLouisiana, Loudoun County Virginia, Montgomery County Missouri, statewide, 2026Loudoun County reported over 17,000 direct and indirect jobs related to data centers. Pelican Institute (pelicanpolicy.org)
300 jobsRichmond, Virginia, 2026a typical data center campus can employ more than 300 full time workers. Richmond Times-Dispatch (richmond.com)
200 jobsHenrico County, VA, 2026Meta created 200 new jobs in Virginia with the data center. VEDP (vedp.org)
110 employeesLeesburg, Loudoun County, VA; Prince William County, VA; Stafford County, VA; Fauquier County, VA, 2026LEO Construction Company has 110 employees. acppubs.com (acppubs.com)
17.4 percentLouisiana, Loudoun County Virginia, Montgomery County Missouri, statewide, 2026Employment in Loudoun surged 17.4% since early 2020. Pelican Institute (pelicanpolicy.org)
2 positionsVirginia, statewide, 2026VEDP additional positions needed to monitor compliance, 2026-27, 2027-28, 2028-29, 2029-30, 2030-31, 2031-32. Virginia fiscal note on S.B. 465 (lis.blob.core.windows.net)
2 positionsVirginia, statewide, 2025VEDP positions added, 2025-26. Virginia fiscal note on H.B. 2715 (lis.blob.core.windows.net)
2 positionsVirginia, statewide, 2024
2 sources
- Additional staff positions required at Virginia Economic Development Partnership to monitor compliance, 2024-25, 2025-26, 2026-27, 2027-28, 2028-29, 2029-30. Virginia fiscal note on H.B. 116 (lis.blob.core.windows.net)
- Number of additional full time employee positions required by Virginia Economic Development Partnership Authority, 2024-25, 2025-26, 2026-27, 2027-28, 2028-29, 2029-30. Virginia fiscal note on S.B. 192 (lis.blob.core.windows.net)

Tax each year

192,000 dollarsVirginia, statewide, 2028General fund expenditure cost to Department of Taxation to implement bill provisions, FY2028. Virginia fiscal note on H.B. 641 (lis.blob.core.windows.net)
110,000 dollarsVirginia, statewide, 2027General fund expenditure cost to Department of Taxation to implement bill provisions, FY2027. Virginia fiscal note on H.B. 641 (lis.blob.core.windows.net)
22,500 dollars a yearWest Virginia, statewide, 2027Additional administrative cost to the State Tax Department in subsequent fiscal years, 2027. West Virginia fiscal note on S.B. 623 (wvlegislature.gov)
2,000,000,000 dollars a yearVirginia, statewide, 2026
2 sources
- Virginia data center tax breaks total 2 billion dollars and continue to grow every year, according to Del. Sam Rasoul. wset.com (wset.com)
- Data center sales tax exemptions total $2 billion according to state Senate President Pro Tempore Louise Lucas (given as 2,000,000,000 USD). Cardinal News (cardinalnews.org)
1,300,000,000 dollarsVirginia, statewide, 2026
2 sources
- Data centers expected to produce 1.3 billion dollars in tax revenue for Loudoun County this year. Bond Buyer (bondbuyer.com)
- Loudoun County data centers are expected to generate 1.3 billion dollars in tax revenue in 2027. thecentersquare.com (thecentersquare.com)
1,300,000,000 USDLoudoun County, VA, 2026
2 sources
- Loudoun County expected to produce $1.3 billion in tax revenue from data centers this year. bondbuyer.com (bondbuyer.com)
- Loudoun County data centers are expected to provide 1.3 billion dollars of tax revenue to the county this year (given as 1,300,000,000 dollars). loudounnow.com (loudounnow.com)
1,000,000,000 dollarsWest Virginia, statewide, 2026
2 sources
- West Virginia Center on Budget and Policy analysis: sales tax exemption alone could exceed 1 billion dollars for every 20 billion in data center buildout. West Virginia Watch (westvirginiawatch.com)
- West Virginia Center on Budget and Policy analysis found that sales tax exemption alone could exceed $1 billion for every $20 billion in data center buildout (given as 1,000,000,000 USD). The Register-Herald (register-herald.com)
2,000,000,000 USDVirginia, statewide, VA, 2026Louise Lucas states Virginia provides $2 billion in sales tax exemptions for data centers. Hanford Sentinel (hanfordsentinel.com)
1,900,000,000 USDLoudoun County, VA, 2026Sales tax exemption for data centers in Virginia worth estimated $1.9 billion in lost revenue signed in 2010. bondbuyer.com (bondbuyer.com)
1,900,000,000 USDVirginia, statewide, 2026Virginia data center operators reported about $1.9 billion in tax benefits in fiscal 2025, up from about $1.3 billion in fiscal 2024. The Center Square (thecentersquare.com)
1,600,000,000 dollarsVirginia, statewide, 2026Virginia data center sales tax exemption on computer and software equipment, created as incentive in 2010, resulted in approximately 1.6 billion dollars in lost state revenue. FFXnow (ffxnow.com)
1,200,000,000 USDLoudoun County, VA, 2026Data centers expected to bring in about $1.2 billion in tax revenue in Loudoun County in 2026. FOX 5 DC (fox5dc.com)
1,200,000,000 dollarsVirginia, statewide, 2026Loudoun County data center industry generated 1.2 billion dollars in real and personal property taxes in fiscal 2026, accounting for 39 percent of the county's overall budget. Law Commentary (lawcommentary.com)
1,200,000,000 USDLouisiana, Loudoun County Virginia, Montgomery County Missouri, statewide, 2026In Fiscal Year 2026, data centers generated $1.2 billion in real and personal property tax revenue in Loudoun County, representing 39% of the county's overall budget. Pelican Institute (pelicanpolicy.org)
1,000,000,000 dollars a yearLoudoun County, VA, 2026Loudoun County data centers generate more than 1 billion dollars in annual local tax revenue. Virginia Business (virginiabusiness.com)
929,000,000 dollarsVirginia, statewide, 2026Data centers contributed an estimated 929 million dollars in sales and use taxes to Virginia. thecentersquare.com (thecentersquare.com)
57,700 dollarsWest Virginia, statewide, 2026Additional administrative cost to the State Tax Department, 2026. West Virginia fiscal note on S.B. 623 (wvlegislature.gov)
11,000 dollars a yearWest Virginia, statewide, 2026Additional administrative cost to the State Tax Department, 2026. West Virginia fiscal note on S.B. 857 (wvlegislature.gov)
5,800 USDLoudoun County, VA, 2026Loudoun County homeowners save an average of $5,800 a year in property taxes thanks to data centers, according to Tax Foundation VP Jared Walczak. Fox News (foxnews.com)
16,500 dollarsWest Virginia, statewide, 2025Additional administrative cost to the State Tax Department, 2025. West Virginia fiscal note on S.B. 857 (wvlegislature.gov)

What the facilities are for

No source on file states what any of the 16 tracked facilities in Loudoun County are for.

How the facilities are cooled

No source on file states how any of the 16 tracked facilities in Loudoun County are cooled.

Cite this page

Data Center Record, "Data centers in Loudoun County, Virginia", https://datacenterrecord.org/states/va/loudoun-county, updated October 6, 2026.

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Data Center Record, "Data center records in Loudoun County, Virginia", https://datacenterrecord.org/states/va/loudoun-county. Data: Data Center Record, datacenterrecord.org, CC BY 4.0.

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For researchers

Place id: us/va/loudoun-county
Level: county
Census GEOID: Not disclosed
Rating value: orange
Scale word: Restrictive
Map file: /data/map/places/va/loudoun-county.geojson