AvalonBay Communities, Inc. engages in the development, redevelopment, acquisition, ownership, and operation of multifamily communities in the United States. As of January 31, 2009, the company owned or held a direct or indirect ownership interest in 164 operating apartment communities comprising 45,728 apartment homes in 10 states and the District of Columbia. It also held a direct or indirect ownership interest in 14 communities under construction, as well as held rights to develop an additional 27 communities. The company's markets are located in New England, the New York/New Jersey metro area, the Mid-Atlantic, the Midwest, the Pacific Northwest, and the Northern and Southern California regions of the United States. AvalonBay Communities has elected to be taxed as a real estate investment trust and would not be subject to federal corporate income taxes if it distributes at least 90% of its taxable income to its stockholders. The company was founded in 1978 and is based in Arlington, Virginia.