National Register of Historical Places - Buchanan County
- Provides a listing of properties, districts, and landmarks in the county. Includes architectural style and period of significance.
- http://www.historicdistricts.com/IA/Buchanan/state.html

The Political Graveyard
- Lists politicians who were born, lived or died in the county, as well as cemeteries and memorial sites of politicians.
- http://politicalgraveyard.com/geo/IA/BU.html