Last official estimated population of Jackson County was 19,829 (year 2014)[1]. This was 0.006% of total US population and 0.6% of total Iowa state population. Area of Jackson County is 649.6 mi² (=1682.5 km²), in this year population density was 30.52 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Jackson County population in 2024 would be 19,782 [0].
Historical population of Jackson 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] +17.72 %/yr
[1850-1860] +9.88 %/yr
[1860-1870] +2.03 %/yr
[1870-1880] +0.5 %/yr
[1880-1890] -0.43 %/yr
[1890-1900] +0.36 %/yr
[1900-1910] -1.05 %/yr
[1910-1920] -0.64 %/yr
[1920-1930] -0.75 %/yr
[1930-1940] +0.37 %/yr
[1940-1950] -0.3 %/yr
[1950-1960] +1.09 %/yr
[1960-1970] +0.04 %/yr
[1970-1980] +0.77 %/yr
[1980-1990] -1.2 %/yr
[1990-2000] +0.17 %/yr
[2000-2005] -0.17 %/yr
[2005-2010] -0.28 %/yr
[2010-2014] -0.02 %/yr
Looking for settlements in Jackson County? Visit this page: Settlements in Jackson County, IA
Population of Jackson County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 523 | 533 | 1,056 |
| 5 to 9 | 587 | 592 | 1,179 |
| 10 to 14 | 680 | 608 | 1,288 |
| 15 to 19 | 683 | 568 | 1,251 |
| 20 to 24 | 526 | 507 | 1,033 |
| 25 to 29 | 460 | 418 | 878 |
| 30 to 34 | 520 | 501 | 1,021 |
| 35 to 39 | 496 | 488 | 984 |
| 40 to 44 | 545 | 562 | 1,107 |
| 45 to 49 | 644 | 658 | 1,302 |
| 50 to 54 | 831 | 798 | 1,629 |
| 55 to 59 | 798 | 772 | 1,570 |
| 60 to 64 | 672 | 657 | 1,329 |
| 65 to 69 | 561 | 592 | 1,153 |
| 70 to 74 | 407 | 474 | 881 |
| 75 to 79 | 325 | 368 | 693 |
| 80 to 84 | 229 | 333 | 562 |
| 85+ | 195 | 371 | 566 |
Jackson 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 | 9542 | 9681 | 19,223 |
| WAC | 9485 | 9613 | 19,098 |
| WA | 9384 | 9502 | 18,886 |
| NHWAC | 9364 | 9505 | 18,869 |
| NHWA | 9271 | 9397 | 18,668 |
| H | 140 | 119 | 259 |
| BAC | 125 | 109 | 234 |
| HWAC | 121 | 108 | 229 |
| TOM | 109 | 114 | 223 |
| HWA | 113 | 105 | 218 |
| NHBAC | 108 | 107 | 215 |
| NHTOM | 101 | 111 | 212 |
| NAC | 70 | 69 | 139 |
| NHNAC | 69 | 68 | 137 |
| NA | 64 | 65 | 129 |
| NHNA | 64 | 64 | 128 |
| IAC | 62 | 66 | 128 |
| BA | 66 | 55 | 121 |
| AAC | 54 | 59 | 113 |
| NHIAC | 54 | 57 | 111 |
| NHAAC | 53 | 57 | 110 |
| NHBA | 52 | 53 | 105 |
| AA | 35 | 39 | 74 |
| NHAA | 35 | 37 | 72 |
| IA | 24 | 25 | 49 |
| NHIA | 19 | 19 | 38 |
| HBAC | 17 | 2 | 19 |
| HIAC | 8 | 9 | 17 |
| HBA | 14 | 2 | 16 |
| HTOM | 8 | 3 | 11 |
| HIA | 5 | 6 | 11 |
| HAAC | 1 | 2 | 3 |
| HNAC | 1 | 1 | 2 |
| HAA | 0 | 2 | 2 |
| HNA | 0 | 1 | 1 |
• Scott County population
36.2 mi, 
183°
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25.9 mi, 
323°
• Whiteside County
44.5 mi, 
129°
• Clinton County
18.5 mi, 
173°
• Jo Daviess County
23.1 mi, 
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• Jones County
27.9 mi, 
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• Cedar County
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• Delaware County
45.7 mi, 
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• Lafayette County
40.8 mi, 
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• Carroll County
34 mi, 
100°
[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
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