Kansas City, Kansas is 2.1 times larger than Columbia, Missouri.
Area: 161 km2 calculated
Columbia is a city of 115,276 people in Missouri, a state of the American Midwest. Founded in 1818 as the county seat of Boone County and home to the University of Missouri, it is the principal municipality of the Columbia Metropolitan Area, the fourth most populous urban area in Missouri. Wikipedia
Area: 332 km2 calculated
Kansas City is the third-largest city in the state of Kansas, the county seat of Wyandotte County, and the third-largest city of the Kansas City metropolitan area. It is part of a consolidated city-county government known as the "Unified Government". Wikipedia