Prince William Sound Census Subarea (historical) is a census located in Chugach County, Alaska. It appears on the Seward C-2 NE USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 480.02 feet (146.31 m) above sea level. The nearest populated place is Kiniklik (historical), approximately 10.5 miles to the NW.