This post office in Oak Grove is located conveniently outside Gate 6. It is very small but hardly ever has a line, as opposed to the larger Fort Campbell and Clarksville post offices which are almost always very busy. I will often drive to the Fort Campbell post office only to take one look at the parking lot and go off post. The minimal extra driving time is well worth the short amount of time spent inside the post office. And unlike the Clarksville post office on Fort Campbell Blvd, where an employee once actually applauded when I left the building with my crying child, the employees at the Oak Grove post office are always friendly and helpful.