About Us

Our geographic service area includes approximately 2,500 square miles in parts of 12 central Wisconsin counties (Adams, Columbia, Dane, Dodge, Green Lake, Jefferson, Marquette, Portage, Sauk, Waupaca, Waushara and Wood.) We have offices in Friendship, Pardeeville, and Wautoma and are governed by a member-elected, seven-person board of directors.  

We’re a community-focused electric cooperative created to efficiently deliver affordable, reliable, and sustainable energy to more than 39,458 homes, businesses, farms, and schools. We are led by and belong to the communities we serve.

Adams-Columbia was formed in 1987 following the successful merger between the former Adams-Marquette Electric Cooperative and the former Columbus Rural Electric Cooperative. In 1992, a second successful merger combined Adams-Columbia with the former Waushara County Electric Cooperative.

Energy Source

We purchase power from Alliant Energy and utilize transmission lines to deliver that power to distribution system to ultimately deliver power to our members’ homes and businesses. The image below shows a breakdown of the organizations we partner with and the costs we incur to deliver power.

Check out the video below showing how power travels from a power plant all the way to the light switch in your home.