Wikipedia: Delaware County, Iowa
- Encyclopedia article features geography, demographics and links to cities and towns. Includes photograph and maps.
- http://en.wikipedia.org/wiki/Delaware_County,_Iowa

City-Data.com: Delaware 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/Delaware_County-IA.html

Delaware County, Iowa - US Census Bureau
- Provides population, demographic, and housing information.
- http://quickfacts.census.gov/qfd/states/19/19055.html

The Delaware County Fair
- Held annually in July. Includes general information, schedule, music lineup and events. Located in Manchester.
- http://www.delawarecofair.com/

Iowa State University Extension - Delaware County
- Offers agricultural, business, family and 4-H programs and resources. Includes staff directory, news, events, hours and directions. Located in Manchester.
- http://www.extension.iastate.edu/delaware/

West Delaware County Community School District
- Home of the Hawks. Provides district information, calendars, monthly newsletter, online forms, volunteer information and links to the buildings.
- http://www.w-delaware.k12.ia.us/

Maquoketa Valley Community Schools
- Highlights the administration, a calendar, newsletters, links to schools, a faculty list, and classroom links. Located in Delhi.
- http://www.maquoketa-v.k12.ia.us/

Delaware County, Iowa
- Provides an overview, descriptions of its communities with links to their Web pages, tourism, upcoming events, economic development, and maps.
- http://www.delawarecountyia.com/

Coffins Grove Stagecoach Inn Museum
- Placed on the National Historic Register in 1975. Includes hours, admission fees, and directions. Located near Manchester.
- http://www.coffinsgrovemuseums.org/