National Park, home of the Washington Nationals baseball team, is one of many LEED-certified buildings in the District of Columbia. Photo courtesy of USGBC

The District of Columbia leads the United States with more than 31 sq. ft. of LEED-certified commercial and institutional green buildings per capita, according to the U.S. Green Building Council. In terms of the 50 states, Colorado topped the 2011 charts with 2.74 sq. ft per capita.

Illinois (2.69 per capita), Virginia (2.42) and Washington (2.18) also rank in the top five. The LEED program has more than 44,000 commercial projects participating, which is more than 8 billion sq. ft. of construction space in all 50 states and 120 countries.

“Our local green building chapters from around the country have been instrumental in accelerating the adoption of green building policies and initiatives that drive construction locally,” USGBC President and CEORick Fedrizzisaid. “These states should be recognized for working to reinvent their local building landscapes with buildings that enliven and bolster the health of our environment, communities and local economies.”