Lee's Summit is a city in Jackson and Cass Counties in the U.S. state of Missouri. The U.S. Census estimated the city's population at 84,208 in 2008. However, the city's development report estimated its population at 92,927 in 2009, making it the sixth-largest city in the Kansas City Metropolitan Area and the sixth-largest city in Missouri. In 2006 CNN/Money and Money magazine ranked Lee's Summit 44th on its list of the 100 Best Cities to Live in the United States. That ranking improved to 27th on the 2010 list.

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