Ipswich is a city in Edmunds County, South Dakota, and serves as the county seat. Located in the north-central region of South Dakota, it is a small community with a population of 928 residents according to the 2020 census.
As the county seat of Edmunds County, Ipswich functions as the administrative center for the county government. The city represents a typical small-town settlement in the agricultural region of South Dakota's interior.