Last official estimated population of Deaf Smith County was 19,440 (year 2014)[1]. This was 0.006% of total US population and 0.1% of total Texas state population. Area of Deaf Smith County is 1,498.4 mi² (=3880.8 km²), in this year population density was 12.97 p/mi². If population growth rate would be same as in period 2010-2014 (+0.09%/yr), Deaf Smith County population in 2025 would be 19,628 [0].
Historical population of Deaf Smith 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] +16.76 %/yr
[1890-1900] +16.76 %/yr
[1900-1910] +16.68 %/yr
[1910-1920] -0.51 %/yr
[1920-1930] +4.78 %/yr
[1930-1940] +0.13 %/yr
[1940-1950] +4.17 %/yr
[1950-1960] +3.77 %/yr
[1960-1970] +3.72 %/yr
[1970-1980] +1.09 %/yr
[1980-1990] -0.99 %/yr
[1990-2000] -0.31 %/yr
[2000-2005] +0.18 %/yr
[2005-2010] +0.67 %/yr
[2010-2014] +0.09 %/yr
Looking for settlements in Deaf Smith County? Visit this page: Settlements in Deaf Smith County, TX
Population of Deaf Smith County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 846 | 896 | 1,742 |
| 5 to 9 | 905 | 873 | 1,778 |
| 10 to 14 | 804 | 858 | 1,662 |
| 15 to 19 | 789 | 711 | 1,500 |
| 20 to 24 | 712 | 663 | 1,375 |
| 25 to 29 | 660 | 579 | 1,239 |
| 30 to 34 | 576 | 631 | 1,207 |
| 35 to 39 | 594 | 589 | 1,183 |
| 40 to 44 | 534 | 517 | 1,051 |
| 45 to 49 | 546 | 538 | 1,084 |
| 50 to 54 | 545 | 517 | 1,062 |
| 55 to 59 | 540 | 538 | 1,078 |
| 60 to 64 | 471 | 487 | 958 |
| 65 to 69 | 307 | 361 | 668 |
| 70 to 74 | 253 | 278 | 531 |
| 75 to 79 | 185 | 224 | 409 |
| 80 to 84 | 117 | 196 | 313 |
| 85+ | 137 | 218 | 355 |
Deaf Smith 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 | 9096 | 9256 | 18,352 |
| WA | 9002 | 9171 | 18,173 |
| H | 6804 | 6746 | 13,550 |
| HWAC | 6560 | 6524 | 13,084 |
| HWA | 6512 | 6482 | 12,994 |
| NH | 2717 | 2928 | 5,645 |
| NHWAC | 2536 | 2732 | 5,268 |
| NHWA | 2490 | 2689 | 5,179 |
| BAC | 224 | 231 | 455 |
| IAC | 223 | 186 | 409 |
| BA | 189 | 192 | 381 |
| IA | 176 | 143 | 319 |
| HIAC | 176 | 137 | 313 |
| NHBAC | 135 | 134 | 269 |
| HIA | 150 | 115 | 265 |
| NHBA | 114 | 109 | 223 |
| TOM | 99 | 94 | 193 |
| HBAC | 89 | 97 | 186 |
| HBA | 75 | 83 | 158 |
| AAC | 64 | 84 | 148 |
| AA | 46 | 65 | 111 |
| NHAAC | 47 | 62 | 109 |
| NHTOM | 50 | 50 | 100 |
| NHIAC | 47 | 49 | 96 |
| HTOM | 49 | 44 | 93 |
| NHAA | 36 | 51 | 87 |
| NHIA | 26 | 28 | 54 |
| HAAC | 17 | 22 | 39 |
| NAC | 14 | 14 | 28 |
| HAA | 10 | 14 | 24 |
| HNAC | 11 | 12 | 23 |
| NA | 9 | 9 | 18 |
| HNA | 8 | 8 | 16 |
| NHNAC | 3 | 2 | 5 |
| NHNA | 1 | 1 | 2 |
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[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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