Johnson County
Johnson County is a county in the U.S. state of Kansas, along the border of the state of Missouri. Its county seat is Olathe. As of the 2020 census, the population was 609,863, making it the most populous county in Kansas. The county was named after Thomas Johnson, a Methodist missionary who was one of the state's first settlers. Largely suburban, the county contains a number of suburbs of Kansas City, Missouri, including Overland Park, a principal city of and the second most populous city in the Kansas City Metropolitan Area.
Governance bodies
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Cities and towns 19
- City of De Soto pop. 6,380
- City of Edgerton pop. 1,741
- City of Fairway pop. 4,171
- City of Gardner pop. 23,942
- City of Lake Quivira pop. 1,008
- City of Leawood pop. 33,743
- City of Lenexa pop. 58,388
- City of Merriam pop. 11,017
- City of Mission pop. 9,864
- City of Mission Hills pop. 3,565
- City of Mission Woods pop. 200
- City of Olathe pop. 143,014
- City of Overland Park pop. 197,106
- City of Prairie Village pop. 22,878
- City of Roeland Park pop. 6,817
- City of Shawnee pop. 67,511
- City of Spring Hill pop. 8,547
- City of Westwood pop. 1,739
- City of Westwood Hills pop. 395
Townships 6
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 208083
- FIPS state
- 20
- FIPS county
- 091
- FIPS place
- 99091
- Census record name
- COUNTY OF JOHNSON
- Mailing address
- 111 S CHERRY ST, OLATHE 66061