Location of death was listed as S.E., NY. The town of Southeast, NY is in S.E., NY, just across the state line from CT, where Jonathan was born. So the town of Southeast is used as the likely location.
Another source was from the book on Darius Couch pg 34, which list's it's source from : Allen Collection.........William S. Pelletreu, History of Putnam County (Brewster, NY: Landmark Preservation Society, 1975), 425.