Johnson County, Kansas

Johnson County is one of the 105 county of Kansas, located towards the Midwestern Region (West North Central) of United States. As per the 2000 census, county has a population of 451086 inhabitants. Its population was estimated at 534093 in July 2008, It is the largest county by population in the U.S. state of Kansas. The county comprises an area of 480.15 mi˛ (1243.58 square kilometre), of which, 476.78 square miles (1234.85 square kilometre) of it is land and 3.37 square miles (8.73 square kilometre) of it is water, it is the seventh smallest by area in the U.S. state of Kansas.

Johnson County Kansas
Map of Johnson County, Kansas

According to 2000 Census Bureau, there were 451086 residents, 174570 households, and 121618 families in the county. The population density was 946.1 people per square mile (365.29/km˛), making it the second most densely populated county in Kansas. There were 181612 housing units at an average density of 380.9 per square mile (147.07/km˛). The average household size was 2.56 people, and the average family size was 3.09 people. In the county Population was distributed with 27.1% under the age of 18, 7.6% from 18 to 24, 32.8% from 25 to 44, 22.5% from 45 to 64, and 10% who were 65 or older. For every 100 females there were 95.5 males. For every 100 females age 18 and over, there were 92 males. As of July 2008, the estimated population was 534093, The racial or ethnic makeup of the county was 479399 White, 23394 Black or African American, 2633 American Indian, 20444 Asian, 453 Native Hawaiian, and 7770 from two or more races.

Johnson County Kansas Population 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Population 2000-2008
Johnson County Kansas School Enrollment
School Enrollment 2000
Johnson County Kansas GDP
GDP 2000

The median income for a household in the county was $61455, it is Kansas's wealthiest county by median household income. The median income for a family in the county was $72987, it would be the highest county by median family income in the U.S. state of Kansas. The per capita income for the county was $30919, it is wealthiest county by per capita income in Kansas.

In 2000, 124515 pupils and students, of which 50.22% are male and 49.78% are female, 27.6% of the total population, are in the education system. Of which, percentage of enrollment student are in, 9.16% nursery or pri school, 5.61% kindergarten, 44.07% elementary school, 21.12% high school and 20.04% College graduate school.

RankCityCountyTotal Area mi2Land Area mi2Water Area mi2PopulationDensity mi2Per capita IncomeHouse hold Income
1Bonner Springs CityJohnson County, Leavenworth County, Wyandotte County16.0515.760.296768429.41973043234
2Countryside CityJohnson County0.120.1202952449.93712973958
3De Soto CityJohnson County11.3211.32045614032314146426
4Edgerton CityJohnson County1.291.280.0114401127.71691150179
5Fairway CityJohnson County1.141.14039523468.84545668125
6Gardner CityJohnson County4.954.95093961898.52043450807
7Lake Quivira CityJohnson County, Wyandotte County1.571.30.26932715.360567111670
8Leawood CityJohnson County15.115.080.01276561833.449139102496
9Lenexa CityJohnson County34.4434.280.16402381173.83021261990
10Merriam CityJohnson County4.324.320110082550.92398848455
11Mission CityJohnson County2.532.53097273845.92787042298
12Mission Hills CityJohnson County2.022.02035931782.595405188821
13Mission Woods CityJohnson County0.110.1101651519.668713106885
14Olathe CityJohnson County54.4754.160.3929621716.42449861111
15Overland Park CityJohnson County56.8556.750.114908026273206962116
16Prairie Village CityJohnson County6.226.220220723547.13467758685
17Roeland Park CityJohnson County1.621.62068174197.82622051455
18Shawnee CityJohnson County42.5441.740.8479961149.72814259626
19Spring Hill CityJohnson County, Miami County3.513.450.062727789.61964245052
20Westwood CityJohnson County0.40.4015333791.53104849185
21Westwood Hills CityJohnson County0.070.07037855124825681812
YearPopulation
April 2000 census451086
April 2000 Estimate451479
July 2000 Estimate454605
July 2001 Estimate463878
July 2002 Estimate475755
July 2003 Estimate486160
July 2004 Estimate496152
July 2005 Estimate505329
July 2006 Estimate515275
July 2007 Estimate524801
July 2008 Estimate534093
SchoolMaleFemaleTotal
Nursery school5656575511411
Kindergarten372432616985
Elementary school282072666654873
High school133841291126295
College or graduate school115641338724951
PlaceMedian household incomeMedian family incomePer capita income
Johnson County, Kansas$61455$72987$30919
Kansas, United States$40624$49624$20506
United States$41994$50046$21587