 Frederickson is located at (47.076729, -122.346339).According to the United States Census Bureau, the CDP has a total area of 7.3 square miles (19.0 km²), of which, 7.3 square miles (18.9 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.41%) is water.According to the Frederickson Community Plan published by Pierce County (May 1, 2003) Frederickson's total area is 8,003 acres or 12.5 square miles.