Oregon 2015 Population By County
Updated on June 22, 2021.

According to the US Census Bureau population estimates, there were 4,015,792 people living in Oregon in 2015. Multnomah County was the most populated county with 790,008 residents, followed by Washington County with 572,664 residents, and Clackamas County with 399,647 residents. Wheeler County with a population of 1,326 was the least populated county in Oregon in 2015.

Use the map below to interactively explore the population of each county in Oregon in 2015. The data can also be explored further by sorting and filtering with the table below.

Oregon 2015 Population By County
See also Population estimate for other years:
Table of Oregon 2015 Population By County
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County Population % of State Population
Baker 15,882 0.40%
Benton 88,333 2.20%
Clackamas 399,647 9.95%
Clatsop 37,797 0.94%
Columbia 49,646 1.24%
Coos 62,643 1.56%
Crook 21,455 0.53%
Curry 22,293 0.56%
Deschutes 174,246 4.34%
Douglas 107,164 2.67%
Gilliam 1,868 0.05%
Grant 7,207 0.18%
Harney 7,150 0.18%
Hood River 22,927 0.57%
Jackson 211,403 5.26%
Jefferson 22,541 0.56%
Josephine 84,528 2.11%
Klamath 65,670 1.64%
Lake 7,779 0.19%
Lane 361,946 9.01%
Lincoln 46,999 1.17%
Linn 120,236 2.99%
Malheur 30,211 0.75%
Marion 329,060 8.19%
Morrow 11,130 0.28%
Multnomah 790,008 19.67%
Polk 78,962 1.97%
Sherman 1,689 0.04%
Tillamook 25,561 0.64%
Umatilla 76,467 1.90%
Union 25,703 0.64%
Wallowa 6,813 0.17%
Wasco 25,457 0.63%
Washington 572,664 14.26%
Wheeler 1,326 0.03%
Yamhill 101,381 2.53%