Wikipedia: Dubuque County Courthouse
- Encyclopedia article highlights services and architecture of this 1891 building on the National Register of Historic Places. Includes photograph.
- http://en.wikipedia.org/wiki/Dubuque_County_Courthouse

Wikipedia: Dubuque County, Iowa
- Encyclopedia article presents history, geography, demographics government, the economy, and links to localities and area colleges. Includes photograph and maps.
- http://en.wikipedia.org/wiki/Dubuque_County,_Iowa

City-Data.com: Dubuque County, Iowa
- Profiles population demographics, jobs, housing, agriculture and crime statistics. Contains a list of recreational areas, churches, cemeteries, post offices, charts, graphs and maps.
- http://www.city-data.com/county/Dubuque_County-IA.html

Dubuque County , Iowa - US Census Bureau
- Provides population, demographic, and housing information.
- http://quickfacts.census.gov/qfd/states/19/19061.html

Dubuque Soil & Water Conservation District
- Provides information about programs, watershed projects, meeting schedule and agendas, photographs and staff contacts. Located in Epworth.
- http://www.dubuqueswcd.org/

Dubuque County Conservation Board
- Acquires, develops and maintains public parks, preserves, parkways, playgrounds, recreation centers, county forests, wildlife and other conservation areas. Includes calendar of events and park descriptions. Located in Peosta.
- http://www.dubuquecounty.com/

Dubuque County Library
- Located in Farley with branches in Holy Cross and Epworth. Contains mission statement, online card catalog search and resource materials, FAQs, bookmobile schedule and hours.
- http://www.dubcolib.lib.ia.us/