Mitakata Site, Archaeological site in Laketown, Japan

The Mitakata Site is a settlement site from the late Kofun period, second half of the 6th century, in the Laketown district of Koshigaya, Saitama Prefecture, on former paddy land of the Nakagawa lowland north of Koshigaya-Laketown Station. Excavated in 1966–67, it yielded pit dwellings and a spread of about 16 hectares. It is a Koshigaya city-designated historic site.

The site is a late Kofun period settlement from the second half of the 6th century, excavated in 1966 and 1967, when pit dwellings were found. It was not a burial ground: finds include Haji and Sue pottery, stone tools, wooden posts and boards, beads and spindle whorls, and rice and seeds. The settlement covered about 16 hectares on slightly raised land along the Tone and Ara rivers and is thought to have been destroyed by flooding.

The site's name, Mitakata, is preserved in the Mitakata Site Park laid out beside the excavated ground, though the park's former local-materials storehouse was removed when Koshigaya Laketown was built. Pottery from the dig, including Haji and Sue ware, is now displayed at the Old Nakamura House of Higashikata Village, a Koshigaya-designated cultural property moved to Laketown 9-51.

The excavated Haji and Sue pottery is displayed at the Old Higashikata Village Nakamura Family Residence, a designated tangible cultural property relocated to 9-51 Laketown, Koshigaya. The excavation site itself became Mitakata Site Park, but its local materials storage hall was removed during the Laketown development. The area around the north exit of Koshigaya Laketown Station, where remains are concentrated and unexcavated, is kept as parkland.

Stone tools found at the site were made from rock not available locally, pointing to contact with other regions. The settlement covered about 16 hectares, and it is thought to have been destroyed by flooding of the Tone and Arakawa rivers.