Jeff Cogen is a politician in the U.S. state of Oregon. He was chairman of the Multnomah County Board of Commissioners from 2010 to 2013. Multnomah County is Oregon’s most populous county, with approximately 742,000 residents. The cities of Portland, Fairview, Gresham, Maywood Park, Troutdale and Wood Village are all located within Multnomah County.