DeKalb County Farm Bureau
- Lists their history, membership details, commodity groups, and current issues.
- http://www.dekalbfarmbureau.org/

Dekalb County Soil and Water Conservation District
- Public body made up of citizens concerned with the protection of natural resources. Features programs, meeting and event information.
- http://www.dekalbilswcd.org/

DeKalb County Farmland Foundation
- A nonprofit organization and land trust that seeks to preserve farmland and open space in the county for the benefit of current and future generations.
- http://members.rhizome.net/delray/dcff/

DeKalb County Forest Preserve
- Serves to maintain and acquire national forests within the county. Features recreational events, educational resources and programs.
- http://www.dekalbcounty.org/Forest/forest_preserve.html

DeKalb Sanitary District Wastewater Treatment Plant
- A community service and educational website hosted by The DeKalb Sanitary District, a governmental entity providing wastewater treatment to the cities of DeKalb and Cortland. Features text only and graphical versions of the site.
- http://dekalbsanitarydistrict.com/