Information for Residents Loudoun County is a dynamic county with an outstanding quality of life, located just 25 miles from Washington, D.C. The home of Dulles International Airport and America Online, Loudoun has established a reputation as an international center for technology, communications and transportation. Bordered by the Blue Ridge Mountains and Potomac River, Loudoun is widely known for its beautiful scenery, rich history and strong sense of community. The county also enjoys a reputation for high quality services, including a first-rate educational system. There is a great deal of information available for residents on the Loudoun County Government website, as well as many other local websites. On this page, you will find links to a wealth of information to help you find out more about Loudoun County, including information about government services, schools, and local utilities.