Last official estimated population of Sanborn County was 2,358 (year 2014)[1]. This was 0.001% of total US population and 0.3% of total South Dakota state population. Area of Sanborn County is 570.5 mi² (=1477.5 km²), in this year population density was 4.13 p/mi². If population growth rate would be same as in period 2010-2014 (+0.03%/yr), Sanborn County population in 2024 would be 2,366 [0].
Historical population of Sanborn 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
[1890-1900] -0.32 %/yr
[1900-1910] +4 %/yr
[1910-1920] +1.77 %/yr
[1920-1930] -0.72 %/yr
[1930-1940] -2.39 %/yr
[1940-1950] -1.12 %/yr
[1950-1960] -1.02 %/yr
[1960-1970] -2.25 %/yr
[1970-1980] -1.39 %/yr
[1980-1990] -1.25 %/yr
[1990-2000] -0.57 %/yr
[2000-2005] -1.69 %/yr
[2005-2010] -0.84 %/yr
[2010-2014] +0.03 %/yr
Looking for settlements in Sanborn County? Visit this page: Settlements in Sanborn County, SD
Population of Sanborn County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 74 | 75 | 149 |
| 5 to 9 | 79 | 61 | 140 |
| 10 to 14 | 74 | 73 | 147 |
| 15 to 19 | 72 | 47 | 119 |
| 20 to 24 | 70 | 61 | 131 |
| 25 to 29 | 69 | 59 | 128 |
| 30 to 34 | 79 | 70 | 149 |
| 35 to 39 | 71 | 46 | 117 |
| 40 to 44 | 59 | 49 | 108 |
| 45 to 49 | 55 | 60 | 115 |
| 50 to 54 | 85 | 110 | 195 |
| 55 to 59 | 109 | 94 | 203 |
| 60 to 64 | 108 | 85 | 193 |
| 65 to 69 | 75 | 53 | 128 |
| 70 to 74 | 39 | 44 | 83 |
| 75 to 79 | 33 | 46 | 79 |
| 80 to 84 | 35 | 35 | 70 |
| 85+ | 27 | 55 | 82 |
Sanborn 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 | 1203 | 1115 | 2,318 |
| WA | 1189 | 1092 | 2,281 |
| NH | 1183 | 1097 | 2,280 |
| NHWAC | 1174 | 1089 | 2,263 |
| NHWA | 1161 | 1068 | 2,229 |
| H | 30 | 26 | 56 |
| HWAC | 29 | 26 | 55 |
| HWA | 28 | 24 | 52 |
| TOM | 14 | 23 | 37 |
| NHTOM | 13 | 21 | 34 |
| IAC | 12 | 21 | 33 |
| NHIAC | 11 | 20 | 31 |
| BAC | 8 | 3 | 11 |
| NHBAC | 8 | 3 | 11 |
| AAC | 3 | 7 | 10 |
| IA | 3 | 6 | 9 |
| NHIA | 3 | 6 | 9 |
| NHAAC | 3 | 6 | 9 |
| AA | 3 | 2 | 5 |
| NHAA | 3 | 2 | 5 |
| BA | 3 | 0 | 3 |
| NHBA | 3 | 0 | 3 |
| HTOM | 1 | 2 | 3 |
| NAC | 2 | 0 | 2 |
| HIAC | 1 | 1 | 2 |
| HNAC | 1 | 0 | 1 |
| NA | 1 | 0 | 1 |
| NHNAC | 1 | 0 | 1 |
| HNA | 1 | 0 | 1 |
| HAAC | 0 | 1 | 1 |
| HBAC | 0 | 0 | 0 |
| HIA | 0 | 0 | 0 |
| NHNA | 0 | 0 | 0 |
| HBA | 0 | 0 | 0 |
| HAA | 0 | 0 | 0 |
• Davison County population
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187°
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29 mi, 
341°
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48.1 mi, 
89°
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43.4 mi, 
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• Kingsbury County
37.7 mi, 
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• Hanson County
27.7 mi, 
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• Douglas County
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• Aurora County
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• Miner County
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• Jerauld County
26.5 mi, 
276°
[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
*Miner South Dakota Notes
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