The Town of Decatur is located on the eastern border of Otsego County, New York, United States.

It is named after the popular early-American naval hero Stephen Decatur.

[4] Early settlers began arriving in 1790, settling at the present Decatur village.

The principal streams are Oak and Parker Creek, a tributary to the Schenevus.

The first settlement was made in 1790 by Jacob Kinney near the present village of Decatur.

The first supervisor was David Tripp, and the first town clerk was Lemuel Fletcher.

The brothers Elisha, John and Samuel Waterman, came from Norwich, Connecticut, soon after the Revolution.