The International Downtown Association (IDA) is a membership association for professionals in the field of downtown revitalization, commercial district management, and economic development. The International Downtown Association is a world leader and champion for vital and livable urban centers. Through its network of committed individuals, its rich body of knowledge, and its unique capacity to nurture community-building partnerships, IDA is a guiding force in creating healthy and dynamic centers that anchor the well-being of towns, cities, and regions throughout the world.