Stevensburg is a small rural unincorporated community located at the intersection of Route 3 and Route 663 in Culpeper County, Virginia, United States. Stevensburg is about 6.9 miles east of Culpeper. Stevensburg's ZIP code is 22741. The post office is headquartered in a building approximately 10 by 15 feet, thereby making it one of the smallest post offices in America. Floriculture is a prominent industry, as several large, commercial greenhouses are in operation here.