 Puyallup is 12.2 mi² (31.6 km²).As it is bordered largely by unincorporated Pierce County, the closest neighbors include the city of Sumner to the northeast, Fife and Edgewood to the north, Tacoma to the northwest, Summit and Midland to the west, South Hill, Graham and Frederickson to the south, McMillin and Orting to the southeast, and Alderton to the east.Downtown and the valley neighborhoods of Puyallup would likely be damaged or destroyed in a moderate or large eruption of nearby Mount Rainier.