Last official estimated population of Yamhill County was 99,312 (year 2014)[1]. This was 0.031% of total US population and 2.5% of total Oregon state population. Area of Yamhill County is 718.4 mi² (=1860.5 km²), in this year population density was 138.25 p/mi². If population growth rate would be same as in period 2010-2014 (+0.03%/yr), Yamhill County population in 2022 would be 99,550 [0].
Historical population of Yamhill 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] +7.94 %/yr
[1860-1870] +4.44 %/yr
[1870-1880] +4.71 %/yr
[1880-1890] +3.01 %/yr
[1890-1900] +2.3 %/yr
[1900-1910] +3.14 %/yr
[1910-1920] +1.16 %/yr
[1920-1930] +0.71 %/yr
[1930-1940] +1.8 %/yr
[1940-1950] +2.43 %/yr
[1950-1960] -0.3 %/yr
[1960-1970] +2.16 %/yr
[1970-1980] +3.24 %/yr
[1980-1990] +1.71 %/yr
[1990-2000] +2.63 %/yr
[2000-2005] +1.35 %/yr
[2005-2010] +1.77 %/yr
[2010-2014] +0.03 %/yr
Looking for settlements in Yamhill County? Visit this page: Settlements in Yamhill County, OR
Population of Yamhill County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 2958 | 2813 | 5,771 |
| 5 to 9 | 3487 | 3238 | 6,725 |
| 10 to 14 | 3547 | 3374 | 6,921 |
| 15 to 19 | 3852 | 4038 | 7,890 |
| 20 to 24 | 3768 | 3707 | 7,475 |
| 25 to 29 | 3147 | 2772 | 5,919 |
| 30 to 34 | 3263 | 3012 | 6,275 |
| 35 to 39 | 3276 | 3126 | 6,402 |
| 40 to 44 | 3265 | 3001 | 6,266 |
| 45 to 49 | 3256 | 3025 | 6,281 |
| 50 to 54 | 3353 | 3376 | 6,729 |
| 55 to 59 | 3385 | 3507 | 6,892 |
| 60 to 64 | 3056 | 3281 | 6,337 |
| 65 to 69 | 2524 | 2651 | 5,175 |
| 70 to 74 | 1811 | 2008 | 3,819 |
| 75 to 79 | 1150 | 1371 | 2,521 |
| 80 to 84 | 860 | 1152 | 2,012 |
| 85+ | 842 | 1506 | 2,348 |
Yamhill 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 | 47908 | 48530 | 96,438 |
| WA | 46547 | 47079 | 93,626 |
| NH | 42121 | 43657 | 85,778 |
| NHWAC | 39888 | 41743 | 81,631 |
| NHWA | 38779 | 40527 | 79,306 |
| H | 8679 | 7301 | 15,980 |
| HWAC | 8020 | 6787 | 14,807 |
| HWA | 7768 | 6552 | 14,320 |
| IAC | 1818 | 1681 | 3,499 |
| TOM | 1477 | 1548 | 3,025 |
| AAC | 1310 | 1545 | 2,855 |
| NHAAC | 1153 | 1423 | 2,576 |
| NHTOM | 1203 | 1291 | 2,494 |
| NHIAC | 1252 | 1203 | 2,455 |
| IA | 1091 | 900 | 1,991 |
| AA | 804 | 1006 | 1,810 |
| BAC | 1032 | 656 | 1,688 |
| NHAA | 716 | 945 | 1,661 |
| NHBAC | 842 | 494 | 1,336 |
| NHIA | 693 | 594 | 1,287 |
| BA | 721 | 356 | 1,077 |
| HIAC | 566 | 478 | 1,044 |
| NHBA | 592 | 243 | 835 |
| HIA | 398 | 306 | 704 |
| HTOM | 274 | 257 | 531 |
| NAC | 312 | 202 | 514 |
| NHNAC | 262 | 172 | 434 |
| HBAC | 190 | 162 | 352 |
| HAAC | 157 | 122 | 279 |
| HBA | 129 | 113 | 242 |
| NA | 160 | 69 | 229 |
| NHNA | 138 | 57 | 195 |
| HAA | 88 | 61 | 149 |
| HNAC | 50 | 30 | 80 |
| HNA | 22 | 12 | 34 |
• Multnomah County population
48.3 mi, 
64°
• Washington County
23.6 mi, 
26°
• Clark County
54.1 mi, 
48°
• Clackamas County
54.9 mi, 
96°
• Marion County
43.3 mi, 
123°
• Benton County
52.4 mi, 
185°
• Polk County
24.3 mi, 189°
• Columbia County
49.3 mi, 
13°
• Lincoln County
51 mi, 
214°
• Tillamook County
25.9 mi, 
303°
[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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