Dunkirk is a city in Chautauqua County, New York, United States. It was settled around 1805 and incorporated in 1880. The population was 12,743 as of the 2020 census. Dunkirk is bordered on the north by Lake Erie. It shares a border with the village of Fredonia to the south, and with the town of Dunkirk to the east and west. Dunkirk is the westernmost city in the state of New York.