- Warwick, Orange County, New York, United States2
- Washington County, Georgia, United States1
- Waynesboro, Franklin County, Pennsylvania, United States1
- Wealdon, Lewes, East Sussex, England, United Kingdom1
- Weardale, North Pennines, County Durham, England, United Kingdom1
- Weir's Cave, Augusta County, Virginia, United States1
- Wenlock, Shropshire, England, United Kingdom1
- Westfield, Hampden County, Massachusetts, United States1
- Weyer's Cave (Weir's Cave), Augusta County, Virginia, United States1
- Weymouth Furnace, Egg Harbor, Atlantic County, New Jersey, United States1
- Whitby, North Yorkshire, England, United Kingdom1
- Wigan, Lancashire, England, United Kingdom1
- Wilkes Barre, Luzerne County, Pennsylvania, United States1
- Willow Grove, Lawrence County, Pennsylvania, United States2
- Wilmington,New Castle County, Delaware, United States1
- Wissahickon Valley, Philadelphia, Philadelphia County, Pennsylvania, United States1
- Wolfsberg, Harz, Germany1
- Woodbury, Litchfield County, Connecticut, United States1
- Wurttemberg, Baden-Wurttemberg, Germany1
- York, York County, Pennsylvania, United States1