The National League of Cities is the oldest and largest national organization representing municipal governments throughout t ... he United States. Its mission is to strengthen and promote cities as centers of opportunity, leadership, and governance. Working in partnership with the 49 state municipal leagues, the National League of Cities serves as a resource to and an advocate for the more than 19,000 cities, villages, and towns it represents. More than 1,700 municipalities of all sizes pay dues to NLC and actively participate as leaders and voting members in the organization. read more