Last official estimated population of Llano County was 19,359 (year 2014)[1]. This was 0.006% of total US population and 0.1% of total Texas state population. Area of Llano County is 965.9 mi² (=2501.6 km²), in this year population density was 20.04 p/mi². If population growth rate would be same as in period 2010-2014 (+0.08%/yr), Llano County population in 2026 would be 19,534 [0].
Historical population of Llano County for period 1860-2014 [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

[1860-1870] +2.28 %/yr
[1870-1880] +13.66 %/yr
[1880-1890] +3.16 %/yr
[1890-1900] +0.75 %/yr
[1900-1910] -1.12 %/yr
[1910-1920] -1.94 %/yr
[1920-1930] +0.33 %/yr
[1930-1940] +0.8 %/yr
[1940-1950] -1.08 %/yr
[1950-1960] -0.26 %/yr
[1960-1970] +2.91 %/yr
[1970-1980] +3.81 %/yr
[1980-1990] +1.38 %/yr
[1990-2000] +3.87 %/yr
[2000-2005] +1.63 %/yr
[2005-2010] +0.93 %/yr
[2010-2014] +0.08 %/yr
Looking for settlements in Llano County? Visit this page: Settlements in Llano County, TX
Population of Llano County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 453 | 377 | 830 |
| 5 to 9 | 412 | 419 | 831 |
| 10 to 14 | 425 | 426 | 851 |
| 15 to 19 | 444 | 394 | 838 |
| 20 to 24 | 374 | 373 | 747 |
| 25 to 29 | 341 | 343 | 684 |
| 30 to 34 | 393 | 346 | 739 |
| 35 to 39 | 333 | 370 | 703 |
| 40 to 44 | 416 | 433 | 849 |
| 45 to 49 | 483 | 504 | 987 |
| 50 to 54 | 648 | 704 | 1,352 |
| 55 to 59 | 730 | 866 | 1,596 |
| 60 to 64 | 856 | 1031 | 1,887 |
| 65 to 69 | 912 | 1058 | 1,970 |
| 70 to 74 | 856 | 871 | 1,727 |
| 75 to 79 | 642 | 630 | 1,272 |
| 80 to 84 | 410 | 477 | 887 |
| 85+ | 297 | 463 | 760 |
Llano 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 | 9155 | 9789 | 18,944 |
| WA | 9047 | 9679 | 18,726 |
| NH | 8517 | 9087 | 17,604 |
| NHWAC | 8305 | 8859 | 17,164 |
| NHWA | 8220 | 8770 | 16,990 |
| H | 908 | 998 | 1,906 |
| HWAC | 850 | 930 | 1,780 |
| HWA | 827 | 909 | 1,736 |
| BAC | 170 | 160 | 330 |
| IAC | 154 | 172 | 326 |
| NHBAC | 141 | 130 | 271 |
| BA | 129 | 120 | 249 |
| TOM | 118 | 117 | 235 |
| NHIAC | 106 | 119 | 225 |
| NHBA | 108 | 97 | 205 |
| NHTOM | 94 | 95 | 189 |
| IA | 85 | 98 | 183 |
| AAC | 63 | 75 | 138 |
| NHAAC | 57 | 70 | 127 |
| NHIA | 54 | 59 | 113 |
| AA | 43 | 67 | 110 |
| NHAA | 39 | 63 | 102 |
| HIAC | 48 | 53 | 101 |
| HIA | 31 | 39 | 70 |
| HBAC | 29 | 30 | 59 |
| HTOM | 24 | 22 | 46 |
| HBA | 21 | 23 | 44 |
| NAC | 8 | 7 | 15 |
| NHNAC | 7 | 5 | 12 |
| HAAC | 6 | 5 | 11 |
| HAA | 4 | 4 | 8 |
| NA | 3 | 4 | 7 |
| NHNA | 2 | 3 | 5 |
| HNAC | 1 | 2 | 3 |
| HNA | 1 | 1 | 2 |
• Hays County population
59.3 mi,
138°
• Burnet County
29.3 mi,
78°
• Kendall County
52.8 mi,
181°
• Gillespie County
30.5 mi,
210°
• Lampasas County
42.8 mi,
37°
• Blanco County
34.9 mi,
150°
• McCulloch County
52.8 mi,
310°
• San Saba County
31.9 mi,
345°
• Mills County
54.7 mi,
5°
• Mason County
32.8 mi,
269°
[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
*Bexar, Gillespie, Travis Texas Notes
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