Johnson County, Kansas is located in northeast Kansas and is the fastest growing and largest county in the state.   The population is over 500,000.  Johnson County has the highest median income in the state.  The cities of Johnson County in order of decreasing population are: Overland Park, Olathe, Shawnee, Lenexa, Leawood, Prairie Village, Gardner, Merriam,  Mission, Roeland Park, Bonner Springs (partial), De Soto, Spring Hill (partial), Fairway, Mission Hills, Edgerton, Westwood, Lake Quivira (partial), Westwood Hills and Mission Woods.

Links to School Districts:
USD 229 Blue Valley (Overland Park, Leawood, Olathe)
USD 230 Spring Hill (Spring Hill, Olathe, Overland Park)
USD 231 Gardner-Edgerton (Gardner, Edgerton)
USD 232 De Soto (De Soto, Shawnee, Lenexa, Olathe, Bonner Springs)
USD 233 Olathe (Olathe, Lenexa, Overland Park)
USD 512 Shawnee Mission (Shawnee, Leawood, Lenexa, Fairway, Merriam, Mission, Mission Hills, Prairie Village, Roeland Park, Shawnee, Westwood, Westwood Hills)

Links to City Websites:

Bonner Springs Leawood Olathe Spring Hill

De Soto Lenexa Overland Park Westwood

Edgerton Merriam Prairie Village Westwood Hills

Fairway Mission Roeland Park

Gardner Mission Hills Shawnee