Williamsburg in Morrisons Cove, is a borough in Blair County, Pennsylvania, United States. The population was 1,345 at the 2000 census. It is part of the Altoona, PA Metropolitan Statistical Area.
Williamsburg is located at 40°27′42″N 78°12′14″W / 40.46167°N 78.20389°W / 40.46167; -78.20389 (40.461587, -78.203954).
According to the United States Census Bureau, Williamsburg has a total area of 0.4 square miles (1.0 km²), all of it land.