Wikipedia: Wapello County, Iowa
- Encyclopedia article presents geography, demographics and links to localities. Includes maps and photograph of the courthouse.
- http://en.wikipedia.org/wiki/Wapello_County,_Iowa

Wapello County, Iowa - US Census Bureau
- Provides population, demographic, and housing information.
- http://quickfacts.census.gov/qfd/states/19/19179.html

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