Last official estimated population of Columbia County was 49,340 (year 2014)[1]. This was 0.015% of total US population and 1.2% of total Oregon state population. Area of Columbia County is 688.3 mi² (=1782.8 km²), in this year population density was 71.68 p/mi². If population growth rate would be same as in period 2010-2014 (-0.01%/yr), Columbia County population in 2024 would be 49,313 [0].
Historical population of Columbia 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] +4.96 %/yr
[1870-1880] +8.99 %/yr
[1880-1890] +9.78 %/yr
[1890-1900] +1.85 %/yr
[1900-1910] +5.43 %/yr
[1910-1920] +2.81 %/yr
[1920-1930] +3.69 %/yr
[1930-1940] +0.45 %/yr
[1940-1950] +0.91 %/yr
[1950-1960] -0.26 %/yr
[1960-1970] +2.55 %/yr
[1970-1980] +2.16 %/yr
[1980-1990] +0.52 %/yr
[1990-2000] +1.49 %/yr
[2000-2005] +1.52 %/yr
[2005-2010] +1 %/yr
[2010-2014] -0.01 %/yr
Looking for settlements in Columbia County? Visit this page: Settlements in Columbia County, OR
Population of Columbia County by age groups male (M) and female (F)[1b]
Age Gr. | (M) | (F) | Total |
0 to 4 | 1286 | 1253 | 2,539 |
5 to 9 | 1537 | 1422 | 2,959 |
10 to 14 | 1734 | 1656 | 3,390 |
15 to 19 | 1710 | 1539 | 3,249 |
20 to 24 | 1319 | 1292 | 2,611 |
25 to 29 | 1241 | 1290 | 2,531 |
30 to 34 | 1366 | 1403 | 2,769 |
35 to 39 | 1395 | 1521 | 2,916 |
40 to 44 | 1561 | 1585 | 3,146 |
45 to 49 | 1687 | 1616 | 3,303 |
50 to 54 | 1900 | 1934 | 3,834 |
55 to 59 | 1998 | 2015 | 4,013 |
60 to 64 | 1852 | 1871 | 3,723 |
65 to 69 | 1526 | 1597 | 3,123 |
70 to 74 | 1127 | 1080 | 2,207 |
75 to 79 | 664 | 693 | 1,357 |
80 to 84 | 387 | 519 | 906 |
85+ | 311 | 572 | 883 |
Columbia 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 | 23840 | 23864 | 47,704 |
NH | 23471 | 23694 | 47,165 |
WA | 23007 | 23039 | 46,046 |
NHWAC | 22796 | 22795 | 45,591 |
NHWA | 22091 | 22076 | 44,167 |
H | 1130 | 1164 | 2,294 |
HWAC | 1044 | 1069 | 2,113 |
HWA | 916 | 963 | 1,879 |
TOM | 873 | 889 | 1,762 |
IAC | 837 | 862 | 1,699 |
NHTOM | 736 | 779 | 1,515 |
NHIAC | 701 | 742 | 1,443 |
AAC | 412 | 615 | 1,027 |
NHAAC | 382 | 570 | 952 |
IA | 347 | 366 | 713 |
BAC | 316 | 308 | 624 |
NHIA | 302 | 311 | 613 |
NHBAC | 267 | 275 | 542 |
AA | 154 | 363 | 517 |
NHAA | 143 | 338 | 481 |
BA | 160 | 138 | 298 |
NHBA | 147 | 128 | 275 |
NAC | 125 | 136 | 261 |
HIAC | 136 | 120 | 256 |
HTOM | 137 | 110 | 247 |
NHNAC | 108 | 125 | 233 |
NA | 60 | 63 | 123 |
NHNA | 52 | 62 | 114 |
HIA | 45 | 55 | 100 |
HBAC | 49 | 33 | 82 |
HAAC | 30 | 45 | 75 |
HAA | 11 | 25 | 36 |
HNAC | 17 | 11 | 28 |
HBA | 13 | 10 | 23 |
HNA | 8 | 1 | 9 |
• Multnomah County population
42 mi, 130°
• Washington County
26.8 mi, 181°
• Clark County
31 mi, 112°
• Cowlitz County
26.3 mi, 50°
• Yamhill County
49.3 mi, 193°
• Clatsop County
30.5 mi, 280°
• Tillamook County
46.9 mi, 224°
• Pacific County
54.1 mi, 321°
• Skamania County
54.4 mi, 83°
• Wahkiakum County
29.4 mi, 325°
[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
*Washington, Clatsop Oregon Notes
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