Post Offices in & near Blackwater, Missouri. Operating hours, locations, phone/fax number, services information.
Post Office in Blackwater, Missouri on Main St. Operating hours, phone number, services information, and other locations.
Address: 100 Main St, Blackwater, MO 65322
Phone: 660-846-4261
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
