Wikipedia: Cerro Gordo County, Iowa
- Encyclopedia article covers geography, demographics and links to cities and towns. Contains maps.
- http://en.wikipedia.org/wiki/Cerro_Gordo_County,_Iowa

Cabin Coffee Company
- Upscale coffee house serving lunches and selling freshly roasted coffee. Includes owner profile, product descriptions, photographs, online order information, hours and maps. Located in Clear Lake and Mason City.
- http://www.bkmhost.com/

City-Data.com: Cerro Gordo 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/Cerro_Gordo_County-IA.html

Cerro Gordo, Iowa - US Census Bureau
- Provides population, demographic, and housing information.
- http://quickfacts.census.gov/qfd/states/19/19033.html

Iowa State University: Cerro Gordo County Extension
- Provides information and informal educational opportunities to adults and youth on a variety of topics relating to agriculture, business and industry, families, communities, and youth. Includes staff directory, news and events. Located in Mason City.
- http://www.extension.iastate.edu/cerrogordo/

Cerro Gordo County Official County Government Web Site
- Provides a profile and highlights history, government offices and services, calendar of events and community safety. Includes facilities map and forms.
- http://www.co.cerro-gordo.ia.us/