Last official estimated population of Lewis County was 16,387 (year 2014)[1]. This was 0.005% of total US population and 0.9% of total West Virginia state population. Area of Lewis County is 389.6 mi² (=1009.2 km²), in this year population density was 42.06 p/mi². If population growth rate would be same as in period 2010-2014 (+0.02%/yr), Lewis County population in 2024 would be 16,425 [0].
Historical population of Lewis County for period 1820-2014 [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
[1820-1830] +3.92 %/yr
[1830-1840] +2.71 %/yr
[1840-1850] +2.1 %/yr
[1850-1860] -2.24 %/yr
[1860-1870] +2.44 %/yr
[1870-1880] +2.69 %/yr
[1880-1890] +1.82 %/yr
[1890-1900] +0.66 %/yr
[1900-1910] +0.74 %/yr
[1910-1920] +1.13 %/yr
[1920-1930] +0.64 %/yr
[1930-1940] +0.22 %/yr
[1940-1950] -0.55 %/yr
[1950-1960] -0.67 %/yr
[1960-1970] -0.99 %/yr
[1970-1980] +0.53 %/yr
[1980-1990] -0.88 %/yr
[1990-2000] -0.18 %/yr
[2000-2005] -0.38 %/yr
[2005-2010] -0.27 %/yr
[2010-2014] +0.02 %/yr
Looking for settlements in Lewis County? Visit this page: Settlements in Lewis County, WV
Population of Lewis County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 463 | 478 | 941 |
| 5 to 9 | 483 | 481 | 964 |
| 10 to 14 | 458 | 454 | 912 |
| 15 to 19 | 447 | 387 | 834 |
| 20 to 24 | 462 | 456 | 918 |
| 25 to 29 | 442 | 447 | 889 |
| 30 to 34 | 435 | 496 | 931 |
| 35 to 39 | 553 | 441 | 994 |
| 40 to 44 | 551 | 545 | 1,096 |
| 45 to 49 | 559 | 569 | 1,128 |
| 50 to 54 | 615 | 619 | 1,234 |
| 55 to 59 | 589 | 629 | 1,218 |
| 60 to 64 | 577 | 579 | 1,156 |
| 65 to 69 | 527 | 555 | 1,082 |
| 70 to 74 | 366 | 420 | 786 |
| 75 to 79 | 268 | 323 | 591 |
| 80 to 84 | 179 | 211 | 390 |
| 85+ | 136 | 214 | 350 |
Lewis 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 | 8016 | 8228 | 16,244 |
| WAC | 7987 | 8209 | 16,196 |
| NHWAC | 7903 | 8142 | 16,045 |
| WA | 7886 | 8119 | 16,005 |
| NHWA | 7804 | 8053 | 15,857 |
| TOM | 106 | 92 | 198 |
| NHTOM | 102 | 90 | 192 |
| BAC | 110 | 79 | 189 |
| NHBAC | 103 | 75 | 178 |
| H | 94 | 76 | 170 |
| HWAC | 84 | 67 | 151 |
| HWA | 82 | 66 | 148 |
| IAC | 71 | 54 | 125 |
| NHIAC | 65 | 50 | 115 |
| AAC | 48 | 56 | 104 |
| BA | 65 | 37 | 102 |
| NHAAC | 47 | 53 | 100 |
| NHBA | 60 | 35 | 95 |
| AA | 30 | 41 | 71 |
| NHAA | 29 | 38 | 67 |
| IA | 21 | 15 | 36 |
| NHIA | 19 | 12 | 31 |
| HBAC | 7 | 4 | 11 |
| HIAC | 6 | 4 | 10 |
| HBA | 5 | 2 | 7 |
| HTOM | 4 | 2 | 6 |
| HIA | 2 | 3 | 5 |
| NHNAC | 3 | 1 | 4 |
| NAC | 3 | 1 | 4 |
| HAAC | 1 | 3 | 4 |
| HAA | 1 | 3 | 4 |
| NHNA | 2 | 0 | 2 |
| NA | 2 | 0 | 2 |
| HNAC | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
• Harrison County population
20.9 mi, 
16°
• Upshur County
15.4 mi, 
112°
• Taylor County
33.8 mi, 
45°
• Barbour County
28.7 mi, 
68°
• Braxton County
23.7 mi, 
212°
• Ritchie County
33.3 mi, 
293°
• Webster County
35 mi, 
175°
• Gilmer County
19.7 mi, 
255°
• Doddridge County
21.9 mi, 
329°
• Calhoun County
34.8 mi, 
253°
[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 West Virginia Notes
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