Wikipedia: Osceola County, Iowa
- Encyclopedia article covers geography, demographics and links to cities and towns. Includes maps.
- http://en.wikipedia.org/wiki/Osceola_County,_Iowa

City-Data.com: Osceola 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/Osceola_County-IA.html

Osceola County, Iowa - US Census Bureau
- Provides population, demographic, and housing information.
- http://quickfacts.census.gov/qfd/states/19/19143.html

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

Osceola County Economic Development Commission County Guide
- Provides an overview of the communities of Sibley, Ocheyedan, Ashton, Melvin, and Harris. Learn about the quality of life, the labor force, employment, history, museums, and recreation in the area.
- http://www.osceolacountyia.com/