Big Brothers Big Sisters of Johnson County
- Promotes and supports the development of one-to-one mentoring programs for children and youth. Includes events, information about programs and volunteer opportunities, FAQs, office hours and directions.
- http://www.extension.iastate.edu/johnson/bbbs/

Elder Services Inc.,
- Specializing in services for elders and their caregivers in east-central Iowa. Includes history, service brochures and booklets and map. Located in Iowa City.
- http://www.elderservicesiowa.com/

Neighborhood Centers of Johnson County
- Dedicated to building a better future for people in neighborhoods through programs and activities that educate, strengthen families and create a sense of community. Includes information about centers and calendar of events.
- http://www.ncjc.org/

Johnson County Crisis Center
- Provides basic emotional and material support through trained volunteers and staff. Includes information about services and programs, volunteerism and donations. Located in Iowa City.
- http://www.jccrisiscenter.org/

The Arc of Johnson County
- Private nonprofit agency serving children and adults with mental retardation and cognitive disabilities in Johnson and surrounding counties. Includes history, upcoming events, membership, employment application, program details, volunteerism and employee
- http://www.thearcjc.org/

United Way of Johnson County
- Nonprofit organization working with local government entities and community leaders and groups to help needy people. Includes information about partner agencies, services available, news and events, volunteer opportunities and donations. Located in Coralv
- http://www.unitedwayjc.org/

Johnson County Green Party
- Iowa Green Party and GPUS affiliate's candidates, activities, contact information, history, and positions on local and state issues.
- http://www.johnsoncountygreenparty.org/

Johnson County Historical Society
- Private, non-profit group providing education, preservation and interpretation of the historical and cultural heritage of the county. Includes information about memberships and programs. Located in Coralville.
- http://www.jchsiowa.org/

Johnson County Democrats
- Provides a directory of current voting members of the Central Committee, a calendar and events. Located in Coralville.
- http://www.jcdems.org/

National Register of Historical Places - Johnson County
- Provides a listing of properties, districts, and landmarks in the county. Includes architectural style and period of significance.
- http://www.historicdistricts.com/IA/Johnson/state.html

Johnson County Humane Society
- Includes photographs of available animals, news, how to help, and information about fostering.
- http://www.johnsoncountyhumane.org/

The Political Graveyard: Johnson County, Iowa
- Lists politicians who were born in the county, or lived or died there. Includes cemetery information.
- http://politicalgraveyard.com/geo/IA/JO.html