Last official estimated population of Hyde County was 1,416 (year 2014)[1]. This was 0% of total US population and 0.2% of total South Dakota state population. Area of Hyde County is 866.2 mi² (=2243.3 km²), in this year population density was 1.63 p/mi². If population growth rate would be same as in period 2010-2014 (-0.07%/yr), Hyde County population in 2026 would be 1,404 [0].
Historical population of Hyde 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] -2.18 %/yr
[1900-1910] +8.28 %/yr
[1910-1920] +0.02 %/yr
[1920-1930] +1.08 %/yr
[1930-1940] -1.69 %/yr
[1940-1950] -1.02 %/yr
[1950-1960] -0.77 %/yr
[1960-1970] -0.34 %/yr
[1970-1980] -1.93 %/yr
[1980-1990] -1.97 %/yr
[1990-2000] -0.15 %/yr
[2000-2005] -0.85 %/yr
[2005-2010] -2.37 %/yr
[2010-2014] -0.07 %/yr
Looking for settlements in Hyde County? Visit this page: Settlements in Hyde County, SD
Population of Hyde County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 40 | 30 | 70 |
| 5 to 9 | 53 | 37 | 90 |
| 10 to 14 | 42 | 38 | 80 |
| 15 to 19 | 47 | 41 | 88 |
| 20 to 24 | 34 | 37 | 71 |
| 25 to 29 | 36 | 35 | 71 |
| 30 to 34 | 44 | 33 | 77 |
| 35 to 39 | 36 | 36 | 72 |
| 40 to 44 | 23 | 29 | 52 |
| 45 to 49 | 38 | 38 | 76 |
| 50 to 54 | 50 | 38 | 88 |
| 55 to 59 | 54 | 65 | 119 |
| 60 to 64 | 57 | 51 | 108 |
| 65 to 69 | 37 | 41 | 78 |
| 70 to 74 | 36 | 28 | 64 |
| 75 to 79 | 37 | 36 | 73 |
| 80 to 84 | 26 | 33 | 59 |
| 85+ | 15 | 45 | 60 |
Hyde 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 | 692 | 681 | 1,373 |
| WAC | 630 | 625 | 1,255 |
| NHWAC | 622 | 620 | 1,242 |
| WA | 620 | 611 | 1,231 |
| NHWA | 612 | 606 | 1,218 |
| IAC | 77 | 70 | 147 |
| NHIAC | 72 | 65 | 137 |
| IA | 70 | 59 | 129 |
| NHIA | 65 | 54 | 119 |
| TOM | 11 | 14 | 25 |
| NHTOM | 11 | 14 | 25 |
| H | 13 | 10 | 23 |
| HWA | 8 | 5 | 13 |
| HWAC | 8 | 5 | 13 |
| BAC | 5 | 6 | 11 |
| NHBAC | 5 | 6 | 11 |
| HIA | 5 | 5 | 10 |
| HIAC | 5 | 5 | 10 |
| AAC | 3 | 4 | 7 |
| NHAAC | 3 | 4 | 7 |
| BA | 2 | 4 | 6 |
| NHBA | 2 | 4 | 6 |
| AA | 1 | 3 | 4 |
| NHAA | 1 | 3 | 4 |
| NAC | 2 | 0 | 2 |
| NHNAC | 2 | 0 | 2 |
| NA | 1 | 0 | 1 |
| NHNA | 1 | 0 | 1 |
| HNAC | 0 | 0 | 0 |
| HAAC | 0 | 0 | 0 |
| HBA | 0 | 0 | 0 |
| HTOM | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
| HBAC | 0 | 0 | 0 |
| HAA | 0 | 0 | 0 |
• Beadle County population
60.3 mi,
97°
• Hughes County
26.1 mi,
246°
• Brule County
59.2 mi,
160°
• Lyman County
47.6 mi,
201°
• Hand County
24 mi,
88°
• Faulk County
40.1 mi,
24°
• Potter County
42.4 mi,
327°
• Jerauld County
54 mi,
127°
• Buffalo County
36.9 mi,
157°
• Sully County
33.9 mi,
292°
[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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