Last official estimated population of Johnson County was 52,702 (year 2014)[1]. This was 0.017% of total US population and 0.9% of total Missouri state population. Area of Johnson County is 833.2 mi² (=2158 km²), in this year population density was 63.25 p/mi². If population growth rate would be same as in period 2010-2014 (+0.05%/yr), Johnson County population in 2024 would be 52,970 [0].
Historical population of Johnson County for period 1840-2014 [1] , [2] , [3]:
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.
Population • Density • Changes • Legends • Position
[1840-1850] +5.26 %/yr
[1850-1860] +6.97 %/yr
[1860-1870] +5.34 %/yr
[1870-1880] +1.35 %/yr
[1880-1890] -0.01 %/yr
[1890-1900] -0.1 %/yr
[1900-1910] -0.57 %/yr
[1910-1920] -0.54 %/yr
[1920-1930] -1.05 %/yr
[1930-1940] -0.36 %/yr
[1940-1950] -0.42 %/yr
[1950-1960] +3.41 %/yr
[1960-1970] +1.66 %/yr
[1970-1980] +1.35 %/yr
[1980-1990] +0.85 %/yr
[1990-2000] +1.28 %/yr
[2000-2005] +1.18 %/yr
[2005-2010] +0.55 %/yr
[2010-2014] +0.05 %/yr
Looking for settlements in Johnson County? Visit this page: Settlements in Johnson County, MO
Population of Johnson County by age groups male (M) and female (F)[1b]
Age Gr. | (M) | (F) | Total |
0 to 4 | 1794 | 1736 | 3,530 |
5 to 9 | 1671 | 1622 | 3,293 |
10 to 14 | 1606 | 1546 | 3,152 |
15 to 19 | 2241 | 2259 | 4,500 |
20 to 24 | 4869 | 3926 | 8,795 |
25 to 29 | 2337 | 1862 | 4,199 |
30 to 34 | 1799 | 1715 | 3,514 |
35 to 39 | 1494 | 1385 | 2,879 |
40 to 44 | 1400 | 1358 | 2,758 |
45 to 49 | 1263 | 1324 | 2,587 |
50 to 54 | 1651 | 1654 | 3,305 |
55 to 59 | 1474 | 1500 | 2,974 |
60 to 64 | 1229 | 1250 | 2,479 |
65 to 69 | 1044 | 1069 | 2,113 |
70 to 74 | 745 | 814 | 1,559 |
75 to 79 | 533 | 568 | 1,101 |
80 to 84 | 376 | 438 | 814 |
85+ | 332 | 478 | 810 |
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 | 26709 | 25472 | 52,181 |
WAC | 25573 | 24487 | 50,060 |
WA | 24795 | 23779 | 48,574 |
NHWAC | 24557 | 23573 | 48,130 |
NHWA | 23821 | 22920 | 46,741 |
BAC | 1813 | 1512 | 3,325 |
NHBAC | 1730 | 1437 | 3,167 |
BA | 1462 | 1199 | 2,661 |
NHBA | 1397 | 1143 | 2,540 |
H | 1149 | 1032 | 2,181 |
HWAC | 1016 | 914 | 1,930 |
HWA | 974 | 859 | 1,833 |
TOM | 820 | 741 | 1,561 |
AAC | 752 | 790 | 1,542 |
NHAAC | 714 | 762 | 1,476 |
NHTOM | 772 | 682 | 1,454 |
AA | 499 | 565 | 1,064 |
NHAA | 473 | 551 | 1,024 |
IAC | 483 | 421 | 904 |
NHIAC | 423 | 346 | 769 |
IA | 199 | 156 | 355 |
NHIA | 167 | 116 | 283 |
NAC | 131 | 99 | 230 |
NHNAC | 121 | 92 | 213 |
HBAC | 83 | 75 | 158 |
NA | 83 | 64 | 147 |
NHNA | 79 | 60 | 139 |
HIAC | 60 | 75 | 135 |
HBA | 65 | 56 | 121 |
HTOM | 48 | 59 | 107 |
HIA | 32 | 40 | 72 |
HAAC | 38 | 28 | 66 |
HAA | 26 | 14 | 40 |
HNAC | 10 | 7 | 17 |
HNA | 4 | 4 | 8 |
• Jackson County population
33.9 mi, 302°
• Cass County
30 mi, 257°
• Pettis County
28.4 mi, 91°
• Lafayette County
22.6 mi, 1°
• Ray County
40.4 mi, 345°
• Saline County
42.5 mi, 50°
• Henry County
24.6 mi, 177°
• Benton County
41.6 mi, 137°
• Bates County
44 mi, 220°
• St. Clair County
48.6 mi, 177°
[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
*Lafayette Missouri Notes
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