Delaware County Electric Cooperative’s Service Areas Detailed Service Maps by County and Township: Delaware County: Andes Bovina Colchester Davenport Delhi Franklin Hamden Harpersfield Kortright Masonville Meredith Middletown Sidney Stamford Tompkins Walton Otsego County: Maryland Schoharie County: GilboaJeffersonSummit Chenango County: Bainbridge