The Columbia Association (CA) is a 501(c)(4) non-profit service corporation that manages Columbia, MD., a master planned community that is home to approx. 100,000 people and several thousand businesses. In addition to enhancing the Columbia community through several recreational, cultural and community services and programs, CA also manages the short and long-term needs of the community including master planning support for our village centers, storm water management, long-range aquatics master planning, and improving connectivity and walkability. Mission Statement: Working every day in hundreds of ways to make Columbia an even better place to live, work and play.