Dunkirk is a city in Chautauqua County, New York, in the United States. It was officially incorporated in 1880, though it was first settled around 1805. The population was 12,563 as of the 2010 census, with an estimated population of 12,328 in 2013. 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.