Last official estimated population of Skamania County was 11,099 (year 2014)[1]. This was 0.003% of total US population and 0.2% of total Washington state population. Area of Skamania County is 1,683.8 mi² (=4361.1 km²), in this year population density was 6.59 p/mi². If population growth rate would be same as in period 2010-2014 (+0.07%/yr), Skamania County population in 2022 would be 11,165 [0].
Historical population of Skamania 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] -2.6 %/yr
[1870-1880] +19.79 %/yr
[1880-1890] -0.44 %/yr
[1890-1900] +8.11 %/yr
[1900-1910] +5.51 %/yr
[1910-1920] -2.01 %/yr
[1920-1930] +2.06 %/yr
[1930-1940] +4.83 %/yr
[1940-1950] +0.33 %/yr
[1950-1960] +0.84 %/yr
[1960-1970] +1.16 %/yr
[1970-1980] +3.08 %/yr
[1980-1990] +0.46 %/yr
[1990-2000] +1.77 %/yr
[2000-2005] +0.85 %/yr
[2005-2010] +1.44 %/yr
[2010-2014] +0.07 %/yr
Looking for settlements in Skamania County? Visit this page: Settlements in Skamania County, WA
Population of Skamania County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 251 | 263 | 514 |
| 5 to 9 | 353 | 323 | 676 |
| 10 to 14 | 372 | 352 | 724 |
| 15 to 19 | 356 | 327 | 683 |
| 20 to 24 | 286 | 235 | 521 |
| 25 to 29 | 272 | 260 | 532 |
| 30 to 34 | 301 | 304 | 605 |
| 35 to 39 | 320 | 321 | 641 |
| 40 to 44 | 338 | 356 | 694 |
| 45 to 49 | 369 | 371 | 740 |
| 50 to 54 | 515 | 494 | 1,009 |
| 55 to 59 | 513 | 556 | 1,069 |
| 60 to 64 | 511 | 450 | 961 |
| 65 to 69 | 402 | 353 | 755 |
| 70 to 74 | 272 | 257 | 529 |
| 75 to 79 | 145 | 140 | 285 |
| 80 to 84 | 105 | 110 | 215 |
| 85+ | 71 | 116 | 187 |
Skamania 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 | 5528 | 5334 | 10,862 |
| NH | 5397 | 5261 | 10,658 |
| WA | 5378 | 5171 | 10,549 |
| NHWAC | 5215 | 5051 | 10,266 |
| NHWA | 5079 | 4903 | 9,982 |
| H | 355 | 327 | 682 |
| HWAC | 313 | 283 | 596 |
| HWA | 299 | 268 | 567 |
| IAC | 199 | 223 | 422 |
| NHIAC | 161 | 179 | 340 |
| TOM | 161 | 174 | 335 |
| NHTOM | 145 | 158 | 303 |
| IA | 110 | 128 | 238 |
| AAC | 84 | 121 | 205 |
| NHAAC | 79 | 115 | 194 |
| NHIA | 78 | 90 | 168 |
| BAC | 92 | 59 | 151 |
| NHBAC | 80 | 53 | 133 |
| AA | 50 | 75 | 125 |
| NHAA | 48 | 73 | 121 |
| HIAC | 38 | 44 | 82 |
| BA | 49 | 27 | 76 |
| NHBA | 45 | 26 | 71 |
| HIA | 32 | 38 | 70 |
| NAC | 12 | 28 | 40 |
| NHNAC | 9 | 24 | 33 |
| HTOM | 16 | 16 | 32 |
| HBAC | 12 | 6 | 18 |
| NA | 4 | 13 | 17 |
| NHNA | 2 | 11 | 13 |
| HAAC | 5 | 6 | 11 |
| HNAC | 3 | 4 | 7 |
| HBA | 4 | 1 | 5 |
| HNA | 2 | 2 | 4 |
| HAA | 2 | 2 | 4 |
• Multnomah County population
39.8 mi, 
214°
• Washington County
64 mi, 
239°
• Clark County
31 mi, 235°
• Clackamas County
60.8 mi, 
191°
• Yakima County
65.2 mi, 
62°
• Cowlitz County
35.6 mi, 
288°
• Lewis County
43.4 mi, 
332°
• Columbia County
54.4 mi, 
263°
• Hood River County
38.2 mi, 
157°
• Klickitat County
57.4 mi, 
100°
[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
*Clark; Lewis Washington Notes
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