Sandy Ridge is an unincorporated community and census-designated place in Centre County, Pennsylvania, United States. It is part of the State College, Pennsylvania Metropolitan Statistical Area. The population was 407 at the 2010 census. It was also known as Retort.Sandy Ridge is located in Pennsylvania, at 40°48′43″N 78°13′56″W / 40.81194°N 78.23222°W / 40.81194; -78.23222, southwest of the center of Rush Township. It sits at an elevation of 1,800 to 1,950 feet, 3 miles northwest of the physical Sandy Ridge, the 2,500-foot-high local expression of the Allegheny Front.Pennsylvania Route 970 passes through the community, leading northwest 4 miles to Osceola Mills on Moshannon Creek in Clearfield County. Pennsylvania Route 350 forms the eastern edge of the community, leading north 6 miles to Philipsburg and south over the Allegheny Front 9 miles to Interstate 99 at Bald Eagle.According to the United States Census Bureau, the Sandy Ridge CDP has a total area of 0.