Sq. ft. of space to earn LEED-certification in 2011 Per capita District of Columbia 18,954,022 31.50 Colorado 13,803,113 2.74 Illinois 34,567,585 2.69 Virginia 19,358,193 2.42 Washington 14,667,558 2.18 Maryland 11,970,869 2.07 Massachusetts 13,087,625 2.00 Texas 50,001,476 1.99 California 71,551,296 1.92 New York 36,538,981 1.89 Minnesota 9,591,445 1.81





