Chenango County is a county located in the south-central section U.S. state of New York. As of the 2020 census, the population was 47,220. Its county seat is Norwich. The county's name originates from an Oneida word meaning 'large bull-thistle'. The county is part of the Southern Tier region of the state.

Norwich is a city and county seat of Chenango County, New York, United States. Surrounded on all sides by the Town of Norwich, the city's name is taken from Norwich, England. Its population was 7,190 at the 2010 census.