The Koriyama Ruins are now located in 2 to 6-chome, Koriyama, Taihaku Ward, Sendai City, Miyagi Prefecture, once belonging to Natori County, Mutsu Province.
郡山遺跡は現在の宮城県仙台市太白区郡山2丁目～6丁目にあたり、かつては陸奥国名取郡に属した。