Last official estimated population of Cheyenne County was 1,835 (year 2014)[1]. This was 0.001% of total US population and 0% of total Colorado state population. Area of Cheyenne County is 1,781.4 mi² (=4613.9 km²), in this year population density was 1.03 p/mi². If population growth rate would be same as in period 2010-2014 (-0.01%/yr), Cheyenne County population in 2025 would be 1,832 [0].
Historical population of Cheyenne 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] -0.64 %/yr
[1900-1910] +22.09 %/yr
[1910-1920] +0.16 %/yr
[1920-1930] -0.06 %/yr
[1930-1940] -2.25 %/yr
[1940-1950] +1.54 %/yr
[1950-1960] -2.11 %/yr
[1960-1970] -1.51 %/yr
[1970-1980] -1.06 %/yr
[1980-1990] +1.08 %/yr
[1990-2000] -0.72 %/yr
[2000-2005] -2.75 %/yr
[2005-2010] -1.09 %/yr
[2010-2014] -0.01 %/yr
Looking for settlements in Cheyenne County? Visit this page: Settlements in Cheyenne County, CO
Population of Cheyenne County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 70 | 86 | 156 |
| 5 to 9 | 73 | 52 | 125 |
| 10 to 14 | 53 | 56 | 109 |
| 15 to 19 | 68 | 49 | 117 |
| 20 to 24 | 39 | 39 | 78 |
| 25 to 29 | 61 | 48 | 109 |
| 30 to 34 | 52 | 65 | 117 |
| 35 to 39 | 57 | 42 | 99 |
| 40 to 44 | 58 | 41 | 99 |
| 45 to 49 | 58 | 37 | 95 |
| 50 to 54 | 81 | 77 | 158 |
| 55 to 59 | 60 | 69 | 129 |
| 60 to 64 | 72 | 68 | 140 |
| 65 to 69 | 53 | 42 | 95 |
| 70 to 74 | 34 | 38 | 72 |
| 75 to 79 | 29 | 26 | 55 |
| 80 to 84 | 26 | 30 | 56 |
| 85+ | 19 | 43 | 62 |
Cheyenne 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 | 934 | 885 | 1,819 |
| WA | 925 | 876 | 1,801 |
| NH | 826 | 807 | 1,633 |
| NHWAC | 804 | 787 | 1,591 |
| NHWA | 799 | 778 | 1,577 |
| H | 137 | 101 | 238 |
| HWAC | 130 | 98 | 228 |
| HWA | 126 | 98 | 224 |
| IAC | 20 | 13 | 33 |
| IA | 15 | 10 | 25 |
| NHIAC | 11 | 11 | 22 |
| BAC | 12 | 8 | 20 |
| NHBAC | 11 | 7 | 18 |
| TOM | 9 | 9 | 18 |
| NHIA | 9 | 8 | 17 |
| AAC | 4 | 11 | 15 |
| BA | 9 | 5 | 14 |
| NHTOM | 5 | 9 | 14 |
| NHAAC | 3 | 11 | 14 |
| NHBA | 9 | 4 | 13 |
| AA | 4 | 8 | 12 |
| HIAC | 9 | 2 | 11 |
| NHAA | 3 | 8 | 11 |
| HIA | 6 | 2 | 8 |
| HTOM | 4 | 0 | 4 |
| NAC | 2 | 0 | 2 |
| NHNAC | 2 | 0 | 2 |
| HBAC | 1 | 1 | 2 |
| HAAC | 1 | 0 | 1 |
| NA | 1 | 0 | 1 |
| NHNA | 1 | 0 | 1 |
| HAA | 1 | 0 | 1 |
| HBA | 0 | 1 | 1 |
| HNAC | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
• Prowers County population
61.7 mi, 
169°
• Kit Carson County
32.5 mi, 
0°
• Bent County
67.5 mi, 
202°
• Sherman County
59.3 mi, 
53°
• Lincoln County
49.8 mi, 
282°
• Hamilton County
72.8 mi, 
142°
• Wichita County
72.1 mi, 
109°
• Wallace County
45.3 mi, 
81°
• Kiowa County
32 mi, 
194°
• Greeley County
49.6 mi, 
119°
[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
*Bent, Elbert Colorado Notes
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