Ridgeley is a town in Mineral County, West Virginia, United States, and part of the Cumberland Metropolitan Statistical Area. The population was 675 at the 2010 census.
Ridgeley was initially known as St. Clairsville, named for Sir John St Clair, Lt Colonel and Quartermaster General for the British General Edward Braddock. St Clair accompanied Braddock on his ill-fated march on Fort Duquesne and his disastrous defeat on July 9, 1755. It was incorporated as Ridgeley on November 28, 1914, named for the former owners of the land upon which the town was built.
Ridgeley is located at 39°38′35″N 78°46′9″W (39.643187, -78.769189), along the North Branch of the Potomac River, opposite Cumberland, Maryland.
According to the United States Census Bureau, the town has a total area of 0.30 square miles (0.78 km2), of which, 0.29 square miles (0.75 km2) is land and 0.01 square miles (0.03 km2) is water.
The main road providing access to the town is West Virginia Route 28 Alternate. WV 28 Alt connects southward to West Virginia Route 28, which leads to Romney. To the north, WV 28 Alt crosses the Blue Bridge into Cumberland, Maryland. The nearest Interstate and U.S. highways are Interstate 68, U.S. Route 40 and U.S. Route 220, all of which are located in Cumberland.
The type locality of the Ridgeley Member of the Old Port Formation is located in the town.