Last official estimated population of Ritchie County was 10,399 (year 2014)[1]. This was 0.003% of total US population and 0.6% of total West Virginia state population. Area of Ritchie County is 453.7 mi² (=1175.1 km²), in this year population density was 22.92 p/mi². If population growth rate would be same as in period 2010-2014 (-0.12%/yr), Ritchie County population in 2025 would be 10,263 [0].
Historical population of Ritchie 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] +5.78 %/yr
[1860-1870] +2.83 %/yr
[1870-1880] +4.05 %/yr
[1880-1890] +2.12 %/yr
[1890-1900] +1.29 %/yr
[1900-1910] -0.56 %/yr
[1910-1920] -0.79 %/yr
[1920-1930] -0.57 %/yr
[1930-1940] -0.13 %/yr
[1940-1950] -2.03 %/yr
[1950-1960] -1.41 %/yr
[1960-1970] -0.69 %/yr
[1970-1980] +1.21 %/yr
[1980-1990] -1.11 %/yr
[1990-2000] +0.11 %/yr
[2000-2005] +0.3 %/yr
[2005-2010] -0.11 %/yr
[2010-2014] -0.12 %/yr
Looking for settlements in Ritchie County? Visit this page: Settlements in Ritchie County, WV
Population of Ritchie County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 227 | 248 | 475 |
| 5 to 9 | 284 | 293 | 577 |
| 10 to 14 | 336 | 284 | 620 |
| 15 to 19 | 283 | 278 | 561 |
| 20 to 24 | 281 | 260 | 541 |
| 25 to 29 | 212 | 201 | 413 |
| 30 to 34 | 277 | 280 | 557 |
| 35 to 39 | 265 | 287 | 552 |
| 40 to 44 | 311 | 321 | 632 |
| 45 to 49 | 338 | 353 | 691 |
| 50 to 54 | 430 | 360 | 790 |
| 55 to 59 | 408 | 430 | 838 |
| 60 to 64 | 388 | 359 | 747 |
| 65 to 69 | 359 | 370 | 729 |
| 70 to 74 | 216 | 234 | 450 |
| 75 to 79 | 194 | 208 | 402 |
| 80 to 84 | 103 | 125 | 228 |
| 85+ | 62 | 146 | 208 |
Ritchie 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 | 4936 | 5001 | 9,937 |
| WAC | 4929 | 5006 | 9,935 |
| NHWAC | 4898 | 4970 | 9,868 |
| WA | 4883 | 4968 | 9,851 |
| NHWA | 4852 | 4933 | 9,785 |
| TOM | 47 | 39 | 86 |
| NHTOM | 47 | 38 | 85 |
| H | 38 | 36 | 74 |
| IAC | 37 | 34 | 71 |
| HWAC | 31 | 36 | 67 |
| HWA | 31 | 35 | 66 |
| BAC | 41 | 24 | 65 |
| NHBAC | 41 | 24 | 65 |
| NHIAC | 31 | 33 | 64 |
| BA | 25 | 14 | 39 |
| NHBA | 25 | 14 | 39 |
| NHAAC | 12 | 16 | 28 |
| AAC | 12 | 16 | 28 |
| IA | 13 | 5 | 18 |
| NHAA | 5 | 11 | 16 |
| AA | 5 | 11 | 16 |
| NHIA | 7 | 5 | 12 |
| HIAC | 6 | 1 | 7 |
| HIA | 6 | 0 | 6 |
| NAC | 4 | 1 | 5 |
| NHNAC | 3 | 1 | 4 |
| HNAC | 1 | 0 | 1 |
| NA | 1 | 0 | 1 |
| HNA | 1 | 0 | 1 |
| HTOM | 0 | 1 | 1 |
| HBAC | 0 | 0 | 0 |
| NHNA | 0 | 0 | 0 |
| HBA | 0 | 0 | 0 |
| HAAC | 0 | 0 | 0 |
| HAA | 0 | 0 | 0 |
• Wood County population
24.2 mi,
275°
• Washington County
29.5 mi,
309°
• Lewis County
33.3 mi,
113°
• Roane County
33.8 mi,
207°
• Tyler County
22.3 mi,
26°
• Gilmer County
21.5 mi,
147°
• Doddridge County
20.4 mi,
73°
• Calhoun County
23.2 mi,
186°
• Pleasants County
14.1 mi,
338°
• Wirt County
20.2 mi,
237°
[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 22 West Virginia Notes
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