Upper Delaware Real Estate has land and homes for sale in East Branch, NY. East Branch is a hamlet in the Town of Hancock, Delaware County, NY and is located at the confluence of the East Branch Delaware River and the Beaverkill (a/k/a Beaverkill River). It has its own post office (zip 13756), it’s own water system, it’s own fire department and Johnston & Rhodes Bluestone Company. Children living there attend school in the Downsville Central School in Downsville, NY.