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    Grand Forks AFB, ND - Post Office

    The post office at Grand Forks Air Force Base is located at 590 Holzapple Street. The main hours of operation are Monday through Friday from 1100-1400 and closed on Saturdays and Sundays. The final daily pickup at the Grand Forks Air Force Base post office is 1400 Monday through Saturday. For more information about post office box rentals or general questions, call the Grand Forks Air Force Base post office at 701-747-3339 or 1-800-275-8777.