Is Kansas City in Kansas or Missouri?

Kansas City is in both states indeed (I live in Kansas). The majority and most of the attractions of Kansas city are on the Missouri side including the home of the nfl's chiefs, and mlb's royals. also home to the downtrown kansas city area. the kansas side is the smaller city with less attractions but still some including the home of the mls's wizards and a greatwolf lodge, schlitterbahn waterpark resort and the kansas speedway. KCK population=142,500 KCMO population=480,000. That should say it all right there. They kansas side is no more than a suburb of the kansas city MISSOURI metro. I live here on the kansas side.