Last official estimated population of Jackson County was 3,047 (year 2014)[1]. This was 0.001% of total US population and 0.4% of total South Dakota state population. Area of Jackson County is 1,871.3 mi² (=4846.6 km²), in this year population density was 1.63 p/mi². If population growth rate would be same as in period 2010-2014 (+0.13%/yr), Jackson County population in 2026 would be 3,096 [0].
Historical population of Jackson County for period 1890-2014 [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
[1890-1920] +15.84 %/yr
[1920-1930] +0.64 %/yr
[1930-1940] -2.94 %/yr
[1940-1950] -1 %/yr
[1950-1960] +1.16 %/yr
[1960-1970] -2.56 %/yr
[1970-1980] +8.42 %/yr
[1980-1990] -1.99 %/yr
[1990-2000] +0.41 %/yr
[2000-2005] +0.36 %/yr
[2005-2010] +0.33 %/yr
[2010-2014] +0.13 %/yr
Looking for settlements in Jackson County? Visit this page: Settlements in Jackson County, SD
Population of Jackson County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 184 | 174 | 358 |
| 5 to 9 | 148 | 147 | 295 |
| 10 to 14 | 136 | 148 | 284 |
| 15 to 19 | 147 | 132 | 279 |
| 20 to 24 | 112 | 111 | 223 |
| 25 to 29 | 91 | 93 | 184 |
| 30 to 34 | 85 | 96 | 181 |
| 35 to 39 | 81 | 62 | 143 |
| 40 to 44 | 69 | 90 | 159 |
| 45 to 49 | 96 | 97 | 193 |
| 50 to 54 | 106 | 97 | 203 |
| 55 to 59 | 91 | 92 | 183 |
| 60 to 64 | 75 | 77 | 152 |
| 65 to 69 | 69 | 61 | 130 |
| 70 to 74 | 46 | 44 | 90 |
| 75 to 79 | 50 | 39 | 89 |
| 80 to 84 | 29 | 27 | 56 |
| 85+ | 28 | 44 | 72 |
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 | 1586 | 1579 | 3,165 |
| IAC | 876 | 944 | 1,820 |
| NHIAC | 850 | 900 | 1,750 |
| IA | 817 | 883 | 1,700 |
| NHIA | 791 | 839 | 1,630 |
| WAC | 806 | 736 | 1,542 |
| NHWAC | 778 | 728 | 1,506 |
| WA | 733 | 660 | 1,393 |
| NHWA | 707 | 654 | 1,361 |
| TOM | 76 | 79 | 155 |
| NHTOM | 74 | 77 | 151 |
| H | 57 | 52 | 109 |
| HIA | 26 | 44 | 70 |
| HIAC | 26 | 44 | 70 |
| BAC | 23 | 22 | 45 |
| NHBAC | 20 | 21 | 41 |
| HWAC | 28 | 8 | 36 |
| HWA | 26 | 6 | 32 |
| BA | 13 | 7 | 20 |
| NHBA | 10 | 7 | 17 |
| AAC | 8 | 6 | 14 |
| NHAAC | 7 | 5 | 12 |
| NAC | 6 | 2 | 8 |
| NHNAC | 5 | 2 | 7 |
| NA | 3 | 1 | 4 |
| HBAC | 3 | 1 | 4 |
| NHNA | 3 | 1 | 4 |
| HTOM | 2 | 2 | 4 |
| HBA | 3 | 0 | 3 |
| HAAC | 1 | 1 | 2 |
| NHAA | 1 | 1 | 2 |
| AA | 1 | 1 | 2 |
| HNAC | 1 | 0 | 1 |
| HAA | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
• Pennington County population
63.8 mi, 
290°
• Meade County
83.8 mi, 
319°
• Oglala Lakota County
52.5 mi, 
243°
• Todd County
56.3 mi, 
125°
• Cherry County
81.8 mi, 
159°
• Bennett County
34 mi, 
184°
• Stanley County
67.1 mi, 
40°
• Mellette County
43.7 mi, 
98°
• Haakon County
41.9 mi, 
2°
• Jones County
50.6 mi, 
67°
[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
See note 7 South Dakota Notes
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