Last official estimated population of Johnson County was 25,536 (year 2014)[1]. This was 0.008% of total US population and 0.9% of total Arkansas state population. Area of Johnson County is 682.7 mi² (=1768.3 km²), in this year population density was 37.40 p/mi². If population growth rate would be same as in period 2010-2014 (-0%/yr), Johnson County population in 2026 would be 25,524 [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] +4.29 %/yr
[1850-1860] +3.83 %/yr
[1860-1870] +1.86 %/yr
[1870-1880] +2.37 %/yr
[1880-1890] +3.78 %/yr
[1890-1900] +0.4 %/yr
[1900-1910] +1.22 %/yr
[1910-1920] +0.67 %/yr
[1920-1930] -0.88 %/yr
[1930-1940] -0.26 %/yr
[1940-1950] -1.51 %/yr
[1950-1960] -2.58 %/yr
[1960-1970] +0.93 %/yr
[1970-1980] +2.49 %/yr
[1980-1990] +0.45 %/yr
[1990-2000] +2.26 %/yr
[2000-2005] +1.2 %/yr
[2005-2010] +1.11 %/yr
[2010-2014] -0 %/yr
Looking for settlements in Johnson County? Visit this page: Settlements in Johnson County, AR
Population of Johnson County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 985 | 857 | 1,842 |
| 5 to 9 | 881 | 892 | 1,773 |
| 10 to 14 | 898 | 911 | 1,809 |
| 15 to 19 | 886 | 883 | 1,769 |
| 20 to 24 | 891 | 902 | 1,793 |
| 25 to 29 | 828 | 808 | 1,636 |
| 30 to 34 | 858 | 800 | 1,658 |
| 35 to 39 | 772 | 742 | 1,514 |
| 40 to 44 | 730 | 759 | 1,489 |
| 45 to 49 | 832 | 817 | 1,649 |
| 50 to 54 | 917 | 895 | 1,812 |
| 55 to 59 | 838 | 842 | 1,680 |
| 60 to 64 | 712 | 752 | 1,464 |
| 65 to 69 | 673 | 687 | 1,360 |
| 70 to 74 | 489 | 527 | 1,016 |
| 75 to 79 | 324 | 422 | 746 |
| 80 to 84 | 229 | 292 | 521 |
| 85+ | 177 | 297 | 474 |
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 |
| WAC | 12257 | 12495 | 24,752 |
| WA | 12000 | 12285 | 24,285 |
| NH | 11079 | 11418 | 22,497 |
| NHWAC | 10571 | 10934 | 21,505 |
| NHWA | 10345 | 10738 | 21,083 |
| H | 1841 | 1667 | 3,508 |
| HWAC | 1686 | 1561 | 3,247 |
| HWA | 1655 | 1547 | 3,202 |
| BAC | 395 | 323 | 718 |
| IAC | 350 | 290 | 640 |
| NHBAC | 304 | 268 | 572 |
| BA | 306 | 252 | 558 |
| NHIAC | 276 | 232 | 508 |
| TOM | 282 | 218 | 500 |
| NHTOM | 246 | 202 | 448 |
| NHBA | 222 | 201 | 423 |
| AAC | 187 | 188 | 375 |
| NHAAC | 168 | 179 | 347 |
| IA | 169 | 149 | 318 |
| AA | 148 | 166 | 314 |
| NHAA | 136 | 158 | 294 |
| NHIA | 122 | 105 | 227 |
| HBAC | 91 | 55 | 146 |
| HBA | 84 | 51 | 135 |
| HIAC | 74 | 58 | 132 |
| HIA | 47 | 44 | 91 |
| HTOM | 36 | 16 | 52 |
| NAC | 24 | 15 | 39 |
| NA | 15 | 15 | 30 |
| HAAC | 19 | 9 | 28 |
| NHNAC | 13 | 14 | 27 |
| NHNA | 8 | 14 | 22 |
| HAA | 12 | 8 | 20 |
| HNAC | 11 | 1 | 12 |
| HNA | 7 | 1 | 8 |
• Washington County population
50.3 mi, 
303°
• Pope County
26 mi, 
108°
• Crawford County
43.3 mi, 
270°
• Logan County
28.4 mi, 
210°
• Yell County
39.9 mi, 
175°
• Conway County
48.6 mi, 
115°
• Franklin County
24.1 mi, 
259°
• Madison County
33.6 mi, 
334°
• Newton County
27.2 mi, 
31°
• Searcy County
48.6 mi, 
62°
[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
*Pope Arkansas Notes
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