Last official estimated population of Grant County was 11,900 (year 2014)[1]. This was 0.004% of total US population and 0.6% of total West Virginia state population. Area of Grant County is 480.3 mi² (=1243.9 km²), in this year population density was 24.78 p/mi². If population growth rate would be same as in period 2010-2014 (-0.08%/yr), Grant County population in 2026 would be 11,790 [0].
Historical population of Grant County for period 1870-2014 [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

[1870-1880] +2.18 %/yr
[1880-1890] +2.07 %/yr
[1890-1900] +0.67 %/yr
[1900-1910] +0.75 %/yr
[1910-1920] +1.38 %/yr
[1920-1930] -0.63 %/yr
[1930-1940] +0.42 %/yr
[1940-1950] -0.06 %/yr
[1950-1960] -0.53 %/yr
[1960-1970] +0.36 %/yr
[1970-1980] +1.72 %/yr
[1980-1990] +0.21 %/yr
[1990-2000] +0.8 %/yr
[2000-2005] +0.62 %/yr
[2005-2010] +0.49 %/yr
[2010-2014] -0.08 %/yr
Looking for settlements in Grant County? Visit this page: Settlements in Grant County, WV
Population of Grant County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 295 | 310 | 605 |
| 5 to 9 | 306 | 299 | 605 |
| 10 to 14 | 363 | 316 | 679 |
| 15 to 19 | 341 | 308 | 649 |
| 20 to 24 | 309 | 300 | 609 |
| 25 to 29 | 290 | 278 | 568 |
| 30 to 34 | 296 | 280 | 576 |
| 35 to 39 | 313 | 328 | 641 |
| 40 to 44 | 365 | 362 | 727 |
| 45 to 49 | 411 | 409 | 820 |
| 50 to 54 | 427 | 443 | 870 |
| 55 to 59 | 441 | 426 | 867 |
| 60 to 64 | 439 | 440 | 879 |
| 65 to 69 | 418 | 446 | 864 |
| 70 to 74 | 350 | 334 | 684 |
| 75 to 79 | 205 | 243 | 448 |
| 80 to 84 | 147 | 159 | 306 |
| 85+ | 91 | 199 | 290 |
Grant 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 | 5718 | 5816 | 11,534 |
| NH | 5715 | 5816 | 11,531 |
| WA | 5661 | 5767 | 11,428 |
| NHWAC | 5644 | 5760 | 11,404 |
| NHWA | 5589 | 5712 | 11,301 |
| BAC | 101 | 61 | 162 |
| H | 92 | 64 | 156 |
| NHBAC | 83 | 56 | 139 |
| HWAC | 74 | 56 | 130 |
| HWA | 72 | 55 | 127 |
| BA | 68 | 39 | 107 |
| TOM | 58 | 49 | 107 |
| NHTOM | 56 | 48 | 104 |
| NHBA | 51 | 35 | 86 |
| IAC | 32 | 30 | 62 |
| NHIAC | 31 | 27 | 58 |
| AAC | 14 | 21 | 35 |
| NHAAC | 13 | 20 | 33 |
| HBAC | 18 | 5 | 23 |
| AA | 10 | 13 | 23 |
| NHAA | 10 | 12 | 22 |
| HBA | 17 | 4 | 21 |
| IA | 10 | 10 | 20 |
| NHIA | 9 | 8 | 17 |
| HIAC | 1 | 3 | 4 |
| HTOM | 2 | 1 | 3 |
| HIA | 1 | 2 | 3 |
| HAAC | 1 | 1 | 2 |
| NAC | 0 | 2 | 2 |
| NA | 0 | 2 | 2 |
| HNAC | 0 | 1 | 1 |
| HNA | 0 | 1 | 1 |
| NHNA | 0 | 1 | 1 |
| NHNAC | 0 | 1 | 1 |
| HAA | 0 | 1 | 1 |
• Shenandoah County population
37.6 mi,
117°
• Preston County
35.7 mi,
314°
• Garrett County
30.8 mi,
352°
• Randolph County
42.6 mi,
238°
• Mineral County
24.3 mi,
31°
• Hampshire County
34.3 mi,
65°
• Barbour County
43 mi,
273°
• Hardy County
20.1 mi,
109°
• Pendleton County
30.8 mi,
194°
• Tucker County
19.6 mi,
271°
[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
*Hardy West Virginia Notes
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