Last official estimated population of Sheridan County was 2,551 (year 2014)[1]. This was 0.001% of total US population and 0.1% of total Kansas state population. Area of Sheridan County is 896.2 mi² (=2321.2 km²), in this year population density was 2.85 p/mi². If population growth rate would be same as in period 2010-2014 (-0.05%/yr), Sheridan County population in 2026 would be 2,536 [0].
Historical population of Sheridan County for period 1880-2014 [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

[1880-1890] +9.07 %/yr
[1890-1900] +0.23 %/yr
[1900-1910] +4 %/yr
[1910-1920] -0.3 %/yr
[1920-1930] +0.97 %/yr
[1930-1940] -1.27 %/yr
[1940-1950] -1.41 %/yr
[1950-1960] -0.76 %/yr
[1960-1970] -1 %/yr
[1970-1980] -0.85 %/yr
[1980-1990] -1.51 %/yr
[1990-2000] -0.78 %/yr
[2000-2005] -1.43 %/yr
[2005-2010] -0.48 %/yr
[2010-2014] -0.05 %/yr
Looking for settlements in Sheridan County? Visit this page: Settlements in Sheridan County, KS
Population of Sheridan County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 71 | 51 | 122 |
| 5 to 9 | 96 | 83 | 179 |
| 10 to 14 | 103 | 93 | 196 |
| 15 to 19 | 68 | 72 | 140 |
| 20 to 24 | 67 | 48 | 115 |
| 25 to 29 | 67 | 58 | 125 |
| 30 to 34 | 65 | 48 | 113 |
| 35 to 39 | 53 | 76 | 129 |
| 40 to 44 | 73 | 52 | 125 |
| 45 to 49 | 60 | 60 | 120 |
| 50 to 54 | 110 | 94 | 204 |
| 55 to 59 | 112 | 101 | 213 |
| 60 to 64 | 93 | 88 | 181 |
| 65 to 69 | 74 | 66 | 140 |
| 70 to 74 | 56 | 59 | 115 |
| 75 to 79 | 49 | 57 | 106 |
| 80 to 84 | 42 | 63 | 105 |
| 85+ | 40 | 71 | 111 |
Sheridan 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 | 1285 | 1230 | 2,515 |
| WA | 1274 | 1212 | 2,486 |
| NH | 1249 | 1193 | 2,442 |
| NHWAC | 1241 | 1186 | 2,427 |
| NHWA | 1232 | 1171 | 2,403 |
| H | 50 | 47 | 97 |
| HWAC | 44 | 44 | 88 |
| HWA | 42 | 41 | 83 |
| IAC | 16 | 14 | 30 |
| TOM | 12 | 18 | 30 |
| NHTOM | 10 | 15 | 25 |
| NHIAC | 9 | 11 | 20 |
| BAC | 7 | 8 | 15 |
| IA | 8 | 5 | 13 |
| NHBAC | 6 | 6 | 12 |
| HIAC | 7 | 3 | 10 |
| NHAAC | 3 | 6 | 9 |
| AAC | 3 | 6 | 9 |
| HIA | 5 | 2 | 7 |
| NHIA | 3 | 3 | 6 |
| HTOM | 2 | 3 | 5 |
| NHAA | 2 | 2 | 4 |
| NHBA | 2 | 2 | 4 |
| BA | 2 | 2 | 4 |
| AA | 2 | 2 | 4 |
| NAC | 1 | 2 | 3 |
| HBAC | 1 | 2 | 3 |
| HNAC | 1 | 1 | 2 |
| NA | 1 | 1 | 2 |
| HNA | 1 | 1 | 2 |
| NHNAC | 0 | 1 | 1 |
| HAAC | 0 | 0 | 0 |
| HBA | 0 | 0 | 0 |
| NHNA | 0 | 0 | 0 |
| HAA | 0 | 0 | 0 |
• Red Willow County population
56.6 mi,
358°
• Thomas County
34.3 mi,
270°
• Norton County
41.6 mi,
43°
• Rooks County
59.7 mi,
90°
• Trego County
42.8 mi,
133°
• Decatur County
29.9 mi,
358°
• Logan County
48.8 mi,
231°
• Gove County
30 mi,
184°
• Graham County
30 mi,
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• Rawlins County
45.3 mi,
311°
[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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