Dixon was an active member of the League, serving as the Orange County Division president (2000-2001), Orange County Division director, chair (2007) and vice chair (2006) of the Revenue and Taxation Policy Committee as well as the League's Tribal and City Governments Collaborative (2007-2010).

He was also active in the successful 2004 Proposition 1A and the 2010 Prop. 22 campaigns, which both amended the California Constitutional to protect cities from continual state raids of city coffers.