Cumberland County, New York

Cumberland County, New York, was a county in the Province of New York that became part of the Vermont Republic. It was divided out of Albany County in 1766, and abandoned by the new State of New York in 1777 (defacto ceded to the Vermont Republic).

It became part of Cumberland County, Vermont Republic, on 17 March 1778, established by combining lands from Cumberland County, Province of New York, and Gloucester County, Province of New York, previously ceded to the Republic.