Last official estimated population of Buchanan County was 24,028 (year 2014)[1]. This was 0.008% of total US population and 0.3% of total Virginia state population. Area of Buchanan County is 503.8 mi² (=1304.9 km²), in this year population density was 47.69 p/mi². If population growth rate would be same as in period 2010-2014 (-0.07%/yr), Buchanan County population in 2026 would be 23,819 [0].
Historical population of Buchanan 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] +3.06 %/yr
[1870-1880] +4.19 %/yr
[1880-1890] +0.3 %/yr
[1890-1900] +5.15 %/yr
[1900-1910] +2.44 %/yr
[1910-1920] +2.27 %/yr
[1920-1930] +0.81 %/yr
[1930-1940] +6.52 %/yr
[1940-1950] +1.28 %/yr
[1950-1960] +0.27 %/yr
[1960-1970] -1.35 %/yr
[1970-1980] +1.71 %/yr
[1980-1990] -1.91 %/yr
[1990-2000] -1.49 %/yr
[2000-2005] -1.26 %/yr
[2005-2010] -0.98 %/yr
[2010-2014] -0.07 %/yr
Looking for settlements in Buchanan County? Visit this page: Settlements in Buchanan County, VA
Population of Buchanan County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 520 | 500 | 1,020 |
| 5 to 9 | 583 | 525 | 1,108 |
| 10 to 14 | 612 | 578 | 1,190 |
| 15 to 19 | 611 | 575 | 1,186 |
| 20 to 24 | 714 | 568 | 1,282 |
| 25 to 29 | 801 | 623 | 1,424 |
| 30 to 34 | 740 | 606 | 1,346 |
| 35 to 39 | 756 | 595 | 1,351 |
| 40 to 44 | 806 | 735 | 1,541 |
| 45 to 49 | 876 | 816 | 1,692 |
| 50 to 54 | 917 | 937 | 1,854 |
| 55 to 59 | 1010 | 940 | 1,950 |
| 60 to 64 | 813 | 862 | 1,675 |
| 65 to 69 | 714 | 834 | 1,548 |
| 70 to 74 | 582 | 618 | 1,200 |
| 75 to 79 | 370 | 516 | 886 |
| 80 to 84 | 212 | 273 | 485 |
| 85+ | 133 | 235 | 368 |
Buchanan 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 | 11699 | 11274 | 22,973 |
| WAC | 11145 | 11203 | 22,348 |
| NHWAC | 11081 | 11148 | 22,229 |
| WA | 11078 | 11145 | 22,223 |
| NHWA | 11019 | 11091 | 22,110 |
| BAC | 606 | 112 | 718 |
| NHBAC | 599 | 108 | 707 |
| BA | 575 | 75 | 650 |
| NHBA | 572 | 72 | 644 |
| TOM | 73 | 68 | 141 |
| NHTOM | 68 | 67 | 135 |
| H | 71 | 62 | 133 |
| HWAC | 64 | 55 | 119 |
| HWA | 59 | 54 | 113 |
| AAC | 51 | 50 | 101 |
| NHAAC | 51 | 50 | 101 |
| IAC | 36 | 37 | 73 |
| NHIAC | 32 | 33 | 65 |
| NHAA | 34 | 30 | 64 |
| AA | 34 | 30 | 64 |
| IA | 8 | 18 | 26 |
| NHIA | 4 | 14 | 18 |
| HBAC | 7 | 4 | 11 |
| NAC | 5 | 5 | 10 |
| NHNAC | 4 | 5 | 9 |
| HIAC | 4 | 4 | 8 |
| HIA | 4 | 4 | 8 |
| HTOM | 5 | 1 | 6 |
| HBA | 3 | 3 | 6 |
| NA | 2 | 0 | 2 |
| NHNA | 2 | 0 | 2 |
| HNAC | 1 | 0 | 1 |
| HNA | 0 | 0 | 0 |
| HAAC | 0 | 0 | 0 |
| HAA | 0 | 0 | 0 |
• Pike County population
25.4 mi, 
306°
• Washington County
36.3 mi, 
172°
• Tazewell County
28 mi, 
110°
• Wise County
38 mi, 
237°
• Logan County
39.2 mi, 
7°
• Russell County
23.3 mi, 
187°
• Mingo County
32 mi, 
348°
• Wyoming County
35.5 mi, 
49°
• McDowell County
22.3 mi, 
69°
• Dickenson County
19.4 mi, 242°
[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
See note 12 Virginia Notes
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