Settlements similar to or like Northern Virginia

The statistical areas of the United States of America comprise the metropolitan statistical areas (MSAs), the micropolitan statistical areas (μSAs), and the combined statistical areas (CSAs) currently defined by the United States Office of Management and Budget (OMB). Most recently on March 6, 2020, the Office of Management and Budget defined 1114 statistical areas for the United States, including 4 combined statistical areas, 11 metropolitan statistical areas, and 4 micropolitan statistical areas in the Commonwealth of Virginia. Wikipedia

Metropolitan area centered on Washington, D.C., the capital of the United States. The area includes all of the federal district and parts of the U.S. states of Maryland, Virginia and West Virginia. Wikipedia

Combined statistical area consisting of the overlapping labor market region of the cities of Washington, D.C. and Baltimore, Maryland. The region includes Central Maryland, Northern Virginia, three counties in the Eastern Panhandle of West Virginia, and one county in South Central Pennsylvania. Wikipedia

State in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. Wikipedia

Local office of the National Weather Service responsible for monitoring weather conditions in 44 counties in eastern West Virginia, northern and central Virginia, the majority of the state of Maryland, as well as the city of Washington, D.C. Although labeled as the NWS Baltimore/Washington, its actual location is off Old Ox Road in the Dulles section of Sterling, Virginia, adjacent to Washington Dulles International Airport. The NWS Baltimore/Washington currently employs about 25 people including meteorologists, support personnel, and management staff, working rotating shifts 24 hours a day, 7 days a week. Wikipedia

This article lists the 3,143 counties and county equivalents of the United States. The 50 states of the United States are divided into 3,007 counties, political and geographic subdivisions of a state. Wikipedia