Last official estimated population of Lewis County was 75,487 (year 2014)[1]. This was 0.024% of total US population and 1.1% of total Washington state population. Area of Lewis County is 2,436.3 mi² (=6309.9 km²), in this year population density was 30.98 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Lewis County population in 2025 would be 75,575 [0].
Historical population of Lewis 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] -3.67 %/yr
[1860-1870] +8.74 %/yr
[1870-1880] +11.34 %/yr
[1880-1890] +16.03 %/yr
[1890-1900] +2.8 %/yr
[1900-1910] +7.8 %/yr
[1910-1920] +1.38 %/yr
[1920-1930] +0.83 %/yr
[1930-1940] +0.33 %/yr
[1940-1950] +0.56 %/yr
[1950-1960] -0.44 %/yr
[1960-1970] +0.83 %/yr
[1970-1980] +2.11 %/yr
[1980-1990] +0.58 %/yr
[1990-2000] +1.46 %/yr
[2000-2005] +0.99 %/yr
[2005-2010] +0.92 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Lewis County? Visit this page: Settlements in Lewis County, WA
Population of Lewis County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 2213 | 2129 | 4,342 |
| 5 to 9 | 2292 | 2163 | 4,455 |
| 10 to 14 | 2333 | 2255 | 4,588 |
| 15 to 19 | 2544 | 2224 | 4,768 |
| 20 to 24 | 2282 | 2088 | 4,370 |
| 25 to 29 | 2236 | 2050 | 4,286 |
| 30 to 34 | 2134 | 2013 | 4,147 |
| 35 to 39 | 2050 | 2047 | 4,097 |
| 40 to 44 | 2132 | 2194 | 4,326 |
| 45 to 49 | 2240 | 2147 | 4,387 |
| 50 to 54 | 2613 | 2813 | 5,426 |
| 55 to 59 | 2764 | 2802 | 5,566 |
| 60 to 64 | 2680 | 2814 | 5,494 |
| 65 to 69 | 2482 | 2409 | 4,891 |
| 70 to 74 | 1844 | 1962 | 3,806 |
| 75 to 79 | 1307 | 1366 | 2,673 |
| 80 to 84 | 779 | 951 | 1,730 |
| 85+ | 653 | 1123 | 1,776 |
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 |
| WAC | 35989 | 36047 | 72,036 |
| WA | 34853 | 34978 | 69,831 |
| NH | 33720 | 34092 | 67,812 |
| NHWAC | 32442 | 32906 | 65,348 |
| NHWA | 31473 | 31984 | 63,457 |
| H | 3858 | 3458 | 7,316 |
| HWAC | 3547 | 3141 | 6,688 |
| HWA | 3380 | 2994 | 6,374 |
| IAC | 1401 | 1338 | 2,739 |
| TOM | 1210 | 1146 | 2,356 |
| NHIAC | 1074 | 1028 | 2,102 |
| NHTOM | 1030 | 982 | 2,012 |
| IA | 703 | 671 | 1,374 |
| AAC | 598 | 706 | 1,304 |
| NHAAC | 542 | 646 | 1,188 |
| BAC | 638 | 446 | 1,084 |
| NHIA | 503 | 471 | 974 |
| NHBAC | 563 | 371 | 934 |
| AA | 322 | 460 | 782 |
| NHAA | 293 | 427 | 720 |
| HIAC | 327 | 310 | 637 |
| BA | 391 | 216 | 607 |
| NHBA | 348 | 173 | 521 |
| HIA | 200 | 200 | 400 |
| NAC | 192 | 180 | 372 |
| HTOM | 180 | 164 | 344 |
| NHNAC | 152 | 138 | 290 |
| NA | 99 | 79 | 178 |
| HBAC | 75 | 75 | 150 |
| NHNA | 73 | 55 | 128 |
| HAAC | 56 | 60 | 116 |
| HBA | 43 | 43 | 86 |
| HNAC | 40 | 42 | 82 |
| HAA | 29 | 33 | 62 |
| HNA | 26 | 24 | 50 |
• King County population
67.9 mi,
22°
• Pierce County
34.2 mi,
18°
• Clark County
56.1 mi,
185°
• Thurston County
32.6 mi,
318°
• Cowlitz County
30.4 mi,
206°
• Mason County
65.3 mi,
324°
• Columbia County
55.4 mi,
217°
• Pacific County
66.8 mi,
268°
• Skamania County
43.4 mi,
152°
• Wahkiakum County
53.6 mi,
248°
[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
Page generated in 0.012 seconds© 2016 population.us | Terms of use | Contact