The Growing Trend of Data Centers in Fairfax County VA and Our Exterior Cleaning Service is Ready to Clean Them!

Published ​August 1, 2026   Author: Michael Thorgersen, Owner, Aqua Clean Solutions, Inc.

Why does Fairfax County have so many data centers?

According to the Commonwealth’s December 2024 JLARC study of the industry, Fairfax County Virginia hosts a comparatively large number of data centers. Fewer than neighboring Loudoun County, but the number keeps climbing as demand for cloud computing grows. The county currently comprises roughly three million square feet of data center space. That said, Fairfax sits inside the largest data center market on earth. Hence, its footprint continues to expand year over year, with more in the planning stages across towns such as Reston, Herndon, and Chantilly. These facilities have clustered in Northern Virginia for several reasons: dense fiber availability, reliable power, and access to internet exchanges. As they expand, Aqua Clean Solutions is working to keep their exteriors free of dust, pollen, and buildup. 

How Many Data Centers Are in Fairfax County? 

Why Are Data Centers Needed, and Why Here?

Data centers are the physical buildings that store, process, and route almost everything people do online, from streaming and email to banking and artificial intelligence. Northern Virginia became the world’s densest cluster for a handful of practical reasons. Dense fiber networks are one, but this area also offers direct access to major internet exchange points, a reliable power grid, and large, flat, developable tracts of land near a skilled workforce and federal customers. Because so much traffic already passes through this area, each new facility built nearby tends to perform better, which keeps drawing more of them. Fairfax County, positioned next to Loudoun and Prince William, plays a connectivity and enterprise role within that network.

How Much Electricity Do These Data Centers Use?

Electricity is the single largest resource story behind the industry. Across the Northern Virginia market, data centers already draw about 4,140 megawatts of power, more than twice the demand of the world’s second largest market. Statewide, the JLARC analysis found that data centers are the main driver of Virginia’s future electricity needs. If growth continues unconstrained, the study projected that Virginia’s electricity use could rise by roughly 183 percent by 2040, compared with only about 15 percent without new data center demand. Dominion Energy has forecast data center peak demand reaching about 9 gigawatts within a decade. Meeting that load will require significant new generation and transmission, and the JLARC report noted this could place upward pressure on energy costs for other customers over time.

How Much Land Do Data Centers Take Up?

Data centers favor large, flat parcels with room for the buildings, cooling systems, parking, and electrical infrastructure that surround them. In Fairfax County, that footprint is still modest next to Loudoun’s, but it is meaningful, and siting decisions have become a central local issue. Because many facilities have been built close to homes, the county has focused new rules on where large campuses can go and how far they must sit from neighborhoods.

Do Data Centers Cause Pollution or Use a Lot of Water?

Two environmental questions come up most often: air emissions and water. Most data centers keep rows of diesel backup generators on site in case the grid fails. The JLARC study found that these generators emit pollutants but run rarely, so their day-to-day air quality impact is minimal, with the main concern being a prolonged regional outage. On water, the report concluded that current data center water use in Virginia is sustainable, though it is growing and could be managed more carefully as the industry expands. These findings are why environmental monitoring remains part of the ongoing policy conversation.

What Do Fairfax County’s Rules Say, and Is the Growth Good or Bad?

The arrival of data centers brings a genuine trade-off, which is why reasonable people in Fairfax County disagree about it. On one side, the industry contributes substantial tax revenue and economic activity, with JLARC estimating tens of thousands of jobs and billions of dollars in annual output statewide, most of it tied to the construction phase. On the other side, residents have raised concerns about energy demand, noise, and how close large campuses sit to homes.

In September 2024, the Fairfax County Board of Supervisors adopted a zoning amendment requiring data centers to reside at least 200 feet from residential areas, keep a set distance from Metro stations, complete noise studies, and screen ground-mounted equipment. County leaders described the approach as a balanced effort to allow the industry while protecting neighborhoods.

You can review the county framework on the Fairfax County data center planning page and the underlying research in the state’s JLARC study.

How Aqua Clean Solutions Fits Into Data Center Growth

Every new campus in this footprint is a large, high-value building that has to keep performing out in the open air, and that is where exterior cleaning connects to everything above. As facilities multiply, dust, pollen, vehicle pollution, and organic growth settle on roofing, walls, cooling equipment, concrete pads, and access roads, where buildup can dull a professional image and, over time, wear on surfaces. Aqua Clean Solutions is a Northern Virginia exterior cleaning company that maintains these properties with low-pressure soft washing and biodegradable solutions, commercial-grade equipment built for large sites, and scheduling coordinated around facilities that run 24 hours a day.

For the full scope of that work, including the surfaces we clean, the methods we use, and the areas we serve, see our data center exterior cleaning hub and our Loudoun and Fairfax data center cleaning page. You can also request a free estimate.

Frequently Asked Questions

Why are there so many data centers in Northern Virginia?
The region has dense fiber, major internet exchange points, reliable power, and developable land, so both internet traffic and new facilities keep concentrating there.

Do data centers raise electricity bills in Virginia?
JLARC found data centers currently pay their own cost of service, but meeting future demand will require new infrastructure that could raise costs for other customers over time.

Is Fairfax County limiting data center growth?
Yes. A September 2024 zoning amendment set setbacks from homes and Metro stations, required noise studies, and added screening and design standards.