Granite, OK

ZIP code 73547 is located in Fort Sill, Oklahoma. This military base is home to the U.S. Army Field Artillery School and the Field Artillery Museum. The zip code is in Comanche County and hosts important landmarks such as the Buffalo Soldier Monument, Geronimo's grave, and the Historic Old Post Quadrangle. The area is steeped in military history and offers a glimpse into the nation's past.