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Johnson County, KS

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Johnson County, KS
  • Location TypeCounty
  • County SeatOlathe, KS
  • Population544,179
  • Land Area (Square Miles) 473.3700
  • Population Density (Per Square Mile) 1149.5998

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Median Age

% Population African American

% Population Hispanic

% Population White

Population Density
(Persons per Square Mile)

Rural-Urban Continuum


Suggested Data Series

TitleLatest YearLatest ValueLatest Rank
Decennial Census Population (County)2010544,179113 of 3170
Decennial Census Population Per Square Mile (County)20101,149.60141 of 3170
Percent of African American Population (County)20184.9%1184 of 3131
Percent of Hispanic Population (County)20187.8%953 of 3139
Persistent Poverty Counties (County)201300 of 0 - 1
Rural-Urban Continuum for Counties (County)201311 of 1 - 9
Unemployment Rate (County)20192.8%2577 of 3140
Death Rate (Per 100,000) (County)2016641.302917 of 3105
Percent of Adults Physically Inactive (County)201617.5%3013 of 3141
Age-Adjusted Rate of Diabetes per 1,000 Persons (County)20166.202513 of 3141
Medicare Part D Prescription Enrollment Rate (County)201844.2%2096 of 3137
Farmers' Markets (County)20168208 of 2249
Percent of Children Without a Market Within One Mile (County)20156.8%2875 of 3004
Percent of School-age Children in Poverty (County)20185.2%3111 of 3140
Total Public School Expenditures (County)2017$1,104,538,000.00143 of 3123
Number of Public Libraries (County)20172908 of 1287
Average Daily Maximum Heat Index (County)201197.09334 of 3103
Percentage of Days with a Good Air Quality Index (County)201991.0%360 of 1006
Greenhouse Gas Direct Emitting Facilities (County)20182833 of 1227
Average Fine Particulate Matter (County)20118.543029 of 3108
FEMA Public Assistance Grant Dollars Obligated for Disasters (County)2011$20,002.831244 of 1328
Total Deposits in Banks (County)2016-2017$19,824,312,000.0094 of 3108
Property Taxes as Percent of Income: Five-Year Estimates (County)2006-20102.9%635 of 2773
Attendance to Arts and Culture Events (County)2015494,40561 of 109
Percent of Firms Which are Women Owned (County)201232.6%1277 of 3093
Manufacturing Establishments with 5 to 9 Employees (County)201865160 of 1961
Immigrant Households Entering County According to Tax Returns (County)2017-201831282 of 389
Estimated Veteran Population Under 45 Years Old (County)20107,585121 of 3143
Total Planted Acres (County)201972,559.471664 of 3034
Online, Mail Order, and Television Retail Sales in 2009 Dollars (County)2050$5,960,000,000.0041 of 2709
Total Retail and Food Service Sales in 2009 Dollars (County)2050$23,262,000,000.0051 of 3108
Earnings in Management of Companies and Enterprises Occupations in 2009 Dollars (County)2050$5,510,000,000.0047 of 2178
Population (County)20501,037,00071 of 3076
Per Capita Total Personal Income (County)2050$311,428.0097 of 3112
Total Employees (County)2050873,00060 of 3065
Population 18 to 24 Years Old (County)205081,00084 of 2216
African American Male Population 25 Years Old (County)2050631136 of 2780
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