The Kentucky's Golden Triangle economic region is the triangular shaped area outlined by Lexington, Louisville and Cincinnati/Northern Kentucky.[1][2] The area contains most of the state's population, wealth, and economic growth.[citation needed] In 2005, the Triangle had an estimated population of 2,253,876; which is 54% of Kentucky's population on 22% of the state's land area.[citation needed] In June 2006, the Courier-Journal reported that the Golden Triangle contains half of the state's ten fastest-growing cities.[2] In April 2013, The Washington Post ranked schools based on an assessment of how challenging they were; nine of the top ten schools in Kentucky were in the Golden Triangle.[3][4]