Population.us > Counties > Kansas > Johnson County

Population of Johnson County

Last official estimated population of Johnson County was 545,666 (year 2014)[1]. This was 0.171% of total US population and 18.7% of total Kansas state population. Area of Johnson County is 479.9 mi² (=1242.9 km²), in this year population density was 1,137.05 p/mi². If population growth rate would be same as in period 2010-2014 (+0.07%/yr), Johnson County population in 2021 would be 548,278 [0].


Historical population

Historical population of Johnson County for period 1860-2014 [1] , [2] , [3]:

Maps: Population, population density, population changes

Estimated population for 2014[1]. Population density is in p./sq.mi [4]. Changes are for period 2010-2015. Value is %/year. Boundary lines are approx. 2012 [5]. Click on flag to hide it.

PopulationDensityChangesLegendsPosition

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Annual growth rate

[1860-1870] +12.11 %/yr
[1870-1880] +2.1 %/yr
[1880-1890] +0.31 %/yr
[1890-1900] +0.41 %/yr
[1900-1910] +0.1 %/yr
[1910-1920] +0.01 %/yr
[1920-1930] +4.03 %/yr
[1930-1940] +2.06 %/yr
[1940-1950] +6.54 %/yr
[1950-1960] +8.64 %/yr
[1960-1970] +4.23 %/yr
[1970-1980] +2.19 %/yr
[1980-1990] +2.77 %/yr
[1990-2000] +2.43 %/yr
[2000-2005] +2.24 %/yr
[2005-2010] +1.53 %/yr
[2010-2014] +0.07 %/yr

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Demography

Population of Johnson County by age groups male (M) and female (F)[1b]

Age Gr. (M) (F) Total
0 to 4 19668 18812 38,480
5 to 9 21054 19912 40,966
10 to 14 21341 20405 41,746
15 to 19 19115 17976 37,091
20 to 24 16241 15816 32,057
25 to 29 18517 18891 37,408
30 to 34 21481 21705 43,186
35 to 39 19915 20122 40,037
40 to 44 19737 19985 39,722
45 to 49 19056 19660 38,716
50 to 54 19948 21265 41,213
55 to 59 18115 20013 38,128
60 to 64 15442 17399 32,841
65 to 69 12061 13297 25,358
70 to 74 7413 8879 16,292
75 to 79 4960 6412 11,372
80 to 84 3556 5119 8,675
85+ 3707 7277 10,984

Johnson County resident population estimates by Sex, Race, and Hispanic Origin[1b]. For full list of abbrevations see: population.us/about page.

Race Male Female Total
NH 259764 271916 531,680
WAC 252292 263201 515,493
WA 245965 256556 502,521
NHWAC 231924 243364 475,288
NHWA 226211 237393 463,604
H 21563 21029 42,592
HWAC 20368 19837 40,205
HWA 19754 19163 38,917
BAC 17225 17401 34,626
NHBAC 16352 16437 32,789
AAC 15391 16199 31,590
NHAAC 15088 15899 30,987
BA 14261 14233 28,494
NHBA 13671 13600 27,271
AA 12991 13759 26,750
NHAA 12875 13656 26,531
TOM 6720 7031 13,751
NHTOM 6051 6304 12,355
IAC 3262 3378 6,640
NHIAC 2557 2682 5,239
IA 1254 1266 2,520
HBAC 873 964 1,837
NHIA 862 885 1,747
HIAC 705 696 1,401
HTOM 669 727 1,396
HBA 590 633 1,223
HIA 392 381 773
NAC 394 378 772
NHNAC 313 319 632
HAAC 303 300 603
NA 136 100 236
HAA 116 103 219
NHNA 94 78 172
HNAC 81 59 140
HNA 42 22 64

Counties near Johnson County

Jackson County population 27.1 mi, 71°
Clay County 36.8 mi, 35°
Wyandotte County 16.3 mi, 11°
Douglas County 25.2 mi, 271°
Cass County 30.1 mi, 122°
Platte County 34.3 mi,
Leavenworth County 24.1 mi, 331°
Miami County 21.9 mi, 181°
Franklin County 33.4 mi, 227°
Jefferson County 38.5 mi, 309°


Sources, notices

[0] Calculated by population.us from last known population growth rate, not official data.

[1] County population - 2014, archived from the original, retrieved 02/23/2016

[1b] Annual County Resident Population Estimates by Age, Sex, Race, and Hispanic Origin, (used only data for 2014) archived from the original, retrieved 02/23/2016

[2] County population - 2000-2010, archived from the original, retrieved 02/23/2016

[3] Population of States and Counties of the United States: 1790 to 1992, PDF, 15 Mb, census.gov, retrieved 02/23/2016

[4] County area, latitude longitude data, retrieved 02/23/2016

[5] County boundaries, CSV files on boundaries.us, retrived 03/18/2016

Kansas Notes

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