The Boyd County Courthouse is located at 2800 Louisa Street, Catlettsburg, KY 41129; phone: 606-739-5116.
The county was created in 1860 from parts of Carter, Greenup and Lawrence counties. It is named for Linn Boyd of Paducah who served as a congressman in the U.S. House of Representatives.
- Alexander Bagby House
- Ashland Commercial Historic District
- Bath Avenue Historic District
- Catlett House
- Culbertson House
- Edward Poage House
- Jacob Savageot House and Saloon
- Lon Rogers House
- Martin Hilton House
- Timothy Fields House
- Valdenar-Wheeler House