The Clay County Courthouse is located at 207 Main Street, Clay WV 25043; phone: 304-587-4202.
Clay County was organized on March 29, 1858, from land taken from Braxton and Nicholas County and named in honor of the Kentucky statesman, Henry Clay.
- Michael J Pauley, Rodney Collins, West Virginia Department of Culture and History, Old Clay County Courthouse, nomination document, 1978, National Park Service, National Register of Historic Places, Washington, D.C.
- 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