US Post Office is located at 63 N Main St, Alfred, NY. This business specializes in Post Offices. US Post Office is open Mon, 8am-4pm ; Tue, 8am-4pm ; Wed, 8am-4pm ; Thu, 8am-4pm ; Fri, 8am-4pm ; Sat, 8am-11am ; Sun, Closed. and accepts American Express, Discover and Visa.