Ashburn, VA

Ashburn's defining infrastructure changed from a farm railroad to a global internet exchange. In 1860, the crossroads then called Farmwell became a stop on the Alexandria, Loudoun and Hampshire Railroad. Trains carried wheat, corn, oats, livestock, and dairy products from agrarian Loudoun County toward regional markets. Farmwell took the name Ashburn in 1896. The rail line later became the Washington and Old Dominion Railroad, and its former alignment is now the W&OD Trail through Old Ashburn. A second network arrived in the 1990s, when America Online and UUNet located headquarters in Ashburn and the MAE East internet exchange brought extensive fiber infrastructure to Loudoun County. The old transportation corridor moved farm goods; the newer one made data storage and exchange a defining land use.

Ashburn remains unincorporated and receives local government through Loudoun County. The 2020 census counted 46,349 residents within the 15.3-square-mile census-designated place, a statistical boundary under county government. Most of the housing pattern visible today arrived long after the railroad village. Ashburn Village and Ashburn Farm began building in the late 1980s, and a county conditions report also identifies Broadlands, Lansdowne, Belmont, and Belmont Green among the area's largest planned communities. Their curving streets, attached and detached housing, community facilities, and shopping centers surround the much smaller historic village along Ashburn Road. The name Ashburn covers Old Ashburn beside the trail and several separately organized residential communities. Data centers make the local business landscape consequential far beyond those neighborhoods.

Loudoun County describes its cluster as one of the world's largest concentrations and traces its emergence to Ashburn's 1990s network companies and fiber exchange. In the county's 2026 public information, data centers generate almost half of county property-tax revenue, so the industry's equipment values affect budgets and tax policy across all of Loudoun. The physical effects are also a continuing land-use issue. In March 2025, the county ended routine by-right approval for future data centers in eligible districts and began requiring a special exception. In 2026, it was still developing further standards for placement, compatibility, infrastructure, and environmental concerns. Server buildings, substations, and transmission needs remain central to an active countywide debate over how another phase of the industry should fit among homes, roads, and utility corridors.

Older and newer transportation networks meet in daily routines. Trailside Park places ballfields, an inline-hockey rink, wooded land, and a playground directly beside the W&OD Trail. In the 2026 Loudoun Transit network, fare-free local buses connect Ashburn Village and Ashburn Farm with Ashburn Metrorail station. That station opened on November 15, 2022, as the western terminus of the Silver Line extension, adding rail service through Washington Dulles International Airport and into the Washington region. The three eras can be seen in one area. A route built to ship nineteenth-century crops now carries trail users through Old Ashburn; buses link planned neighborhoods to Metro; and the fiber network that followed the railroad is housed in industrial buildings nearby.