Orange County administrative offices are located at 200 South Cameron Street, Hillsborough, NC 27278; phone: 919-732-8181.
Established in 1752, the county was named for England's King William III (William of Orange).
- Aurora County Courthouse
- Lincoln House
- Raesly House
- Sweep Hotel
- Smith, William P., House
- Hilton House
- Hofmeister House
- South Dakota Department of Transportation Bridge No. 02-007-220
- South Dakota Department of Transportation Bridge No. 02-012-240