It makes it fun going to concerts to see who can pass the Kansas/Missouri test. I just saw Green Day at an amphitheater on the Kansas side and Billie Joe would scream “Kansas City! Missouri… Kansas… and surrounding areas!” which was a novel solution lol
Both were named for the Kansas river. The location of the mouth of the Kansas river flowing into the Missouri establishes the longitude that the whole western border of Missouri (except for the Platte Purchase). Basically Kansas state is where the Kansas river flows and Kansas City began where the river ends.
It’s in Missouri and Kansas both. St. Louis also exists on both sides of the river/border but East St Louis is always treated differently since it’s in a pretty desperate situation economically and no one seems to care.
Worth mentioning that all 4 of these cities operate under drastically different governments with no oversight over each other which shows when you compare them with each other
Don't feel too stupid, after all a former president of the United States once congratulated the state of Kansas after the Kansas City Chiefs won the Superbowl.