Post Offices in & near Byrnes Mill, Missouri. Operating hours, locations, phone/fax number, services information.
Post Office in House Springs, Missouri on Gravois Rd. Operating hours, phone number, services information, and other locations.
Address: 4650 Gravois Rd, House Springs, MO 63051
Phone: 636-671-1384
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
