Carthage Savings & Loan Association Address: 146 Arsenal St, Watertown, NY 13601 Phone: (315) 779-9775 Banks, Automated Teller Machines, Mortgage Brokers Other Businesses: Northern Credit Union at 120 Factory St, Watertown, NY 13601 KeyBank at 1308 Washington St, Watertown, NY 13601 KeyBank at 20974 State Route 3, Watertown, NY 13601 Woodforest Bank at 20823 State Route 3, Watertown, NY 13601