Last official estimated population of Letcher County was 24,571 (year 2014)[1]. This was 0.008% of total US population and 0.6% of total Kentucky state population. Area of Letcher County is 339.0 mi² (=878.1 km²), in this year population density was 72.47 p/mi². If population growth rate would be same as in period 2010-2014 (+0.05%/yr), Letcher County population in 2025 would be 24,715 [0].
Historical population of Letcher County for period 1850-2014 [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

[1850-1860] +4.51 %/yr
[1860-1870] +1.67 %/yr
[1870-1880] +3.66 %/yr
[1880-1890] +0.47 %/yr
[1890-1900] +2.86 %/yr
[1900-1910] +1.48 %/yr
[1910-1920] +8.7 %/yr
[1920-1930] +3.85 %/yr
[1930-1940] +1.29 %/yr
[1940-1950] -0.27 %/yr
[1950-1960] -2.69 %/yr
[1960-1970] -2.59 %/yr
[1970-1980] +2.85 %/yr
[1980-1990] -1.27 %/yr
[1990-2000] -0.66 %/yr
[2000-2005] -0.54 %/yr
[2005-2010] -0.05 %/yr
[2010-2014] +0.05 %/yr
Looking for settlements in Letcher County? Visit this page: Settlements in Letcher County, KY
Population of Letcher County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 727 | 662 | 1,389 |
| 5 to 9 | 757 | 704 | 1,461 |
| 10 to 14 | 724 | 654 | 1,378 |
| 15 to 19 | 650 | 575 | 1,225 |
| 20 to 24 | 661 | 607 | 1,268 |
| 25 to 29 | 706 | 657 | 1,363 |
| 30 to 34 | 698 | 749 | 1,447 |
| 35 to 39 | 745 | 740 | 1,485 |
| 40 to 44 | 719 | 747 | 1,466 |
| 45 to 49 | 752 | 801 | 1,553 |
| 50 to 54 | 873 | 912 | 1,785 |
| 55 to 59 | 911 | 968 | 1,879 |
| 60 to 64 | 851 | 908 | 1,759 |
| 65 to 69 | 696 | 711 | 1,407 |
| 70 to 74 | 460 | 523 | 983 |
| 75 to 79 | 312 | 411 | 723 |
| 80 to 84 | 153 | 276 | 429 |
| 85+ | 138 | 221 | 359 |
Letcher 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 |
| NH | 11442 | 11756 | 23,198 |
| WAC | 11418 | 11725 | 23,143 |
| WA | 11349 | 11655 | 23,004 |
| NHWAC | 11334 | 11657 | 22,991 |
| NHWA | 11267 | 11589 | 22,856 |
| BAC | 99 | 87 | 186 |
| NHBAC | 97 | 86 | 183 |
| H | 91 | 70 | 161 |
| HWAC | 84 | 68 | 152 |
| HWA | 82 | 66 | 148 |
| TOM | 71 | 71 | 142 |
| NHTOM | 69 | 69 | 138 |
| BA | 69 | 60 | 129 |
| NHBA | 69 | 60 | 129 |
| IAC | 59 | 59 | 118 |
| NHIAC | 52 | 55 | 107 |
| AAC | 30 | 27 | 57 |
| NHAAC | 30 | 27 | 57 |
| AA | 20 | 23 | 43 |
| NHAA | 20 | 23 | 43 |
| IA | 24 | 17 | 41 |
| NHIA | 17 | 15 | 32 |
| HIAC | 7 | 4 | 11 |
| HIA | 7 | 2 | 9 |
| HTOM | 2 | 2 | 4 |
| HBAC | 2 | 1 | 3 |
| NAC | 1 | 1 | 2 |
| NHNAC | 1 | 1 | 2 |
| HNAC | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
| NA | 0 | 0 | 0 |
| NHNA | 0 | 0 | 0 |
| HBA | 0 | 0 | 0 |
| HAAC | 0 | 0 | 0 |
| HAA | 0 | 0 | 0 |
• Wise County population
16.5 mi,
126°
• Floyd County
31.2 mi,
11°
• Harlan County
26.8 mi,
227°
• Perry County
21.4 mi,
293°
• Lee County
32.4 mi,
207°
• Scott County
31.2 mi,
153°
• Knott County
17.3 mi,
344°
• Dickenson County
28.2 mi,
87°
• Leslie County
29.1 mi,
265°
• Norton city
18.3 mi,
134°
[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
*Perry, Harlan Kentucky Notes
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