Last official estimated population of Clatsop County was 37,058 (year 2014)[1]. This was 0.012% of total US population and 0.9% of total Oregon state population. Area of Clatsop County is 1,084.4 mi² (=2808.5 km²), in this year population density was 34.17 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Clatsop County population in 2026 would be 37,115 [0].
Historical population of Clatsop 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] +0.75 %/yr
[1860-1870] +9.68 %/yr
[1870-1880] +19.12 %/yr
[1880-1890] +3.32 %/yr
[1890-1900] +2.45 %/yr
[1900-1910] +2.35 %/yr
[1910-1920] +3.64 %/yr
[1920-1930] -0.86 %/yr
[1930-1940] +1.57 %/yr
[1940-1950] +2.22 %/yr
[1950-1960] -1.16 %/yr
[1960-1970] +0.39 %/yr
[1970-1980] +1.33 %/yr
[1980-1990] +0.25 %/yr
[1990-2000] +0.68 %/yr
[2000-2005] +0.36 %/yr
[2005-2010] +0.41 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Clatsop County? Visit this page: Settlements in Clatsop County, OR
Population of Clatsop County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 983 | 1001 | 1,984 |
| 5 to 9 | 1003 | 1075 | 2,078 |
| 10 to 14 | 1029 | 978 | 2,007 |
| 15 to 19 | 1056 | 1016 | 2,072 |
| 20 to 24 | 1205 | 1086 | 2,291 |
| 25 to 29 | 1176 | 1126 | 2,302 |
| 30 to 34 | 1182 | 1156 | 2,338 |
| 35 to 39 | 1060 | 1023 | 2,083 |
| 40 to 44 | 1012 | 1006 | 2,018 |
| 45 to 49 | 1029 | 1064 | 2,093 |
| 50 to 54 | 1328 | 1361 | 2,689 |
| 55 to 59 | 1488 | 1566 | 3,054 |
| 60 to 64 | 1563 | 1659 | 3,222 |
| 65 to 69 | 1341 | 1334 | 2,675 |
| 70 to 74 | 878 | 941 | 1,819 |
| 75 to 79 | 580 | 587 | 1,167 |
| 80 to 84 | 313 | 457 | 770 |
| 85+ | 273 | 539 | 812 |
Clatsop 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 | 17741 | 18126 | 35,867 |
| WA | 17218 | 17676 | 34,894 |
| NH | 16946 | 17495 | 34,441 |
| NHWAC | 16335 | 16768 | 33,103 |
| NHWA | 15887 | 16386 | 32,273 |
| H | 1553 | 1480 | 3,033 |
| HWAC | 1406 | 1358 | 2,764 |
| HWA | 1331 | 1290 | 2,621 |
| TOM | 552 | 497 | 1,049 |
| IAC | 532 | 514 | 1,046 |
| AAC | 411 | 488 | 899 |
| NHTOM | 472 | 426 | 898 |
| NHAAC | 376 | 453 | 829 |
| NHIAC | 406 | 403 | 809 |
| AA | 253 | 346 | 599 |
| BAC | 286 | 269 | 555 |
| NHAA | 230 | 325 | 555 |
| IA | 244 | 248 | 492 |
| NHBAC | 227 | 223 | 450 |
| NHIA | 170 | 178 | 348 |
| BA | 170 | 154 | 324 |
| NHBA | 130 | 128 | 258 |
| HIAC | 126 | 111 | 237 |
| NAC | 114 | 107 | 221 |
| NHNAC | 104 | 103 | 207 |
| HTOM | 80 | 71 | 151 |
| HIA | 74 | 70 | 144 |
| NA | 62 | 54 | 116 |
| NHNA | 57 | 52 | 109 |
| HBAC | 59 | 46 | 105 |
| HAAC | 35 | 35 | 70 |
| HBA | 40 | 26 | 66 |
| HAA | 23 | 21 | 44 |
| HNAC | 10 | 4 | 14 |
| HNA | 5 | 2 | 7 |
• Multnomah County population
70.2 mi,
117°
• Washington County
43.8 mi,
138°
• Clark County
61.2 mi,
106°
• Cowlitz County
51.3 mi,
77°
• Yamhill County
56.8 mi,
160°
• Lewis County
74.1 mi,
58°
• Columbia County
30.5 mi,
100°
• Tillamook County
39.4 mi,
183°
• Pacific County
36.9 mi,
354°
• Wahkiakum County
23 mi,
35°
[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
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