Johnson County Population 2017

Johnson County's estimated population is 584,451 with a growth rate of 0.98% in the past year according to the most recent United States census data. Johnson County is the 1st largest county in Kansas.

Year Population Growth Growth Rate
2016584,4515,6930.98%
2015578,7585,7341.00%
2014573,0246,6311.17%
2013566,3936,8781.23%
2012559,5156,6601.20%
2011552,8557,0391.29%
2010545,816190,76253.73%
1990355,05484,78531.37%
1980270,26952,60724.17%
1970217,66273,87051.37%
1960143,79281,009129.03%
195062,78329,45688.38%
194033,3276,14822.62%
193027,1798,86548.41%
192018,314260.14%
191018,2881841.02%
190018,1047194.14%
189017,3855323.16%
188016,8533,16923.16%
187013,6849,320213.57%
18604,3640.00%

Johnson County Population Growth

Population Data via

Johnson County Race Data

Race Population Percentage
White506,39486.64%
Black or African American28,2354.83%
Asian27,5384.71%
Two or More Races13,9192.38%
American Indian and Alaska Native2,4790.42%
Native Hawaiian and Other Pacific Islander1930.03%

Johnson County Population Pyramid

0k5k10k15k20kJohnson County Male Population0k5k10k15k20kJohnson County Female Population

Population of Cities in Johnson County

City 2010 Census 2016 Estimated Growth Growth Rate
Overland Park173325188966156419.02%
Olathe12589513547395787.61%
Shawnee622096519429854.80%
Lenexa481885290347159.78%
Leawood318673456526988.47%
Prairie Village21447218053581.67%
Gardner1911521110199510.44%
Mission932394431201.29%
Spring Hill5438616672813.39%
De Soto572060713516.14%
Edgerton17351756211.21%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990