This study aimed to elucidate the production and distribution aspects of pottery during the Unified Silla period, both in the state and private sectors, through geochemical analysis. During that time, fortresses were considered to be state-operated military or administrative bases, while settlements were regarded as local consumption units for daily life. Each of these sectors represented the state and private spheres, respectively. Therefore, by conducting geochemical analysis based on their division, it was expected that the production and distribution patterns of pottery in the national and private sectors could be identified. Based on this premise, the analysis revealed that Sadang-dong pottery, presumed to be produced in a government pottery workshop, shared the production area with pottery from Hoamsan Fortress and Achasan Fortress. It was further confirmed that the production area was not shared among the artifacts from settlements concentrated in te southern Gyeonggi Province. In other words, it is believed that a wide-area distribution network centered around the fortresses coexisted with a small-scale production and distribution system in the Seoul and Gyeonggi regions, where general settlements remains were found.