to
Update
is a city in Johnson County, Kansas, United States. The population was 9,727 at the 2000 census.
In 2003, Mission absorbed the neighboring city of Countryside. The city is a first-tier suburb in the Kansas City Metro. Recently, Mission has been recognized for its efforts to promote community and environmental sustainability.
According to the United States Census Bureau, the city has a total area of 2.5 square miles (6.6 km²), all of it land.