Last official estimated population of Donley County was 3,724 (year 2014)[1]. This was 0.001% of total US population and 0% of total Texas state population. Area of Donley County is 933.0 mi² (=2416.6 km²), in this year population density was 3.99 p/mi². If population growth rate would be same as in period 2010-2014 (+0.32%/yr), Donley County population in 2026 would be 3,869 [0].
Historical population of Donley 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] +20.77 %/yr
[1890-1900] +10.07 %/yr
[1900-1910] +6.73 %/yr
[1910-1920] +4.28 %/yr
[1920-1930] +2.48 %/yr
[1930-1940] -3.1 %/yr
[1940-1950] -1.84 %/yr
[1950-1960] -3.29 %/yr
[1960-1970] -1.98 %/yr
[1970-1980] +1.13 %/yr
[1980-1990] -0.97 %/yr
[1990-2000] +0.31 %/yr
[2000-2005] +0.1 %/yr
[2005-2010] -0.83 %/yr
[2010-2014] +0.32 %/yr
Looking for settlements in Donley County? Visit this page: Settlements in Donley County, TX
Population of Donley County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 80 | 117 | 197 |
| 5 to 9 | 103 | 105 | 208 |
| 10 to 14 | 84 | 82 | 166 |
| 15 to 19 | 197 | 157 | 354 |
| 20 to 24 | 132 | 130 | 262 |
| 25 to 29 | 71 | 76 | 147 |
| 30 to 34 | 101 | 89 | 190 |
| 35 to 39 | 74 | 83 | 157 |
| 40 to 44 | 88 | 73 | 161 |
| 45 to 49 | 75 | 86 | 161 |
| 50 to 54 | 115 | 117 | 232 |
| 55 to 59 | 118 | 115 | 233 |
| 60 to 64 | 124 | 125 | 249 |
| 65 to 69 | 101 | 122 | 223 |
| 70 to 74 | 105 | 117 | 222 |
| 75 to 79 | 68 | 98 | 166 |
| 80 to 84 | 50 | 50 | 100 |
| 85+ | 33 | 82 | 115 |
Donley 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 | 1618 | 1701 | 3,319 |
| WA | 1598 | 1676 | 3,274 |
| NH | 1528 | 1630 | 3,158 |
| NHWAC | 1430 | 1511 | 2,941 |
| NHWA | 1411 | 1488 | 2,899 |
| H | 191 | 194 | 385 |
| HWAC | 188 | 190 | 378 |
| HWA | 187 | 188 | 375 |
| BAC | 91 | 113 | 204 |
| NHBAC | 90 | 111 | 201 |
| BA | 84 | 97 | 181 |
| NHBA | 83 | 95 | 178 |
| TOM | 21 | 28 | 49 |
| NHTOM | 20 | 26 | 46 |
| IAC | 14 | 25 | 39 |
| NHIAC | 11 | 22 | 33 |
| AAC | 14 | 10 | 24 |
| NHAAC | 14 | 10 | 24 |
| IA | 8 | 16 | 24 |
| NHIA | 6 | 14 | 20 |
| AA | 7 | 6 | 13 |
| NHAA | 7 | 6 | 13 |
| HIAC | 3 | 3 | 6 |
| NAC | 3 | 3 | 6 |
| NHNAC | 3 | 2 | 5 |
| HIA | 2 | 2 | 4 |
| HBAC | 1 | 2 | 3 |
| HBA | 1 | 2 | 3 |
| HTOM | 1 | 2 | 3 |
| NA | 1 | 1 | 2 |
| NHNA | 1 | 1 | 2 |
| HNAC | 0 | 1 | 1 |
| HNA | 0 | 0 | 0 |
| HAAC | 0 | 0 | 0 |
| HAA | 0 | 0 | 0 |
• Gray County population
30.9 mi,
0°
• Swisher County
60.4 mi,
240°
• Childress County
45.3 mi,
130°
• Carson County
43.6 mi,
315°
• Wheeler County
43.9 mi,
46°
• Hall County
37.2 mi,
158°
• Collingsworth County
30.8 mi,
88°
• Harmon County
57 mi,
104°
• Armstrong County
30.6 mi,
271°
• Briscoe County
37 mi,
216°
[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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