Colonial Beach, Virginia is a river and beach town located in the northwestern part of Westmoreland County on Virginia's Northern Neck peninsula. It is bounded by the Potomac River, Monroe Bay and Monroe Creek. It is located 65 mi from Washington, D.C.; 70 mi from the state capital of Richmond; and 35 nautical miles from the Chesapeake Bay. Colonial Beach was named Best Virginia Beach for 2018 by USA Today.