Oregon Citizen Population By County in 2010 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2010, the citizen population for Oregon was 3,528,330 and represented 93.79% of the total Oregon population.

Among all Oregon counties, Multnomah had the highest citizen population (652.76K), followed by Washington (462.10K), and Clackamas (353.40K).

In terms of percentages, Baker had the highest percentage of its population being citizens (99.94%), followed by Grant (99.66%), and Wallowa (99.49%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.

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Oregon Citizen Voting-age Population By County in 2010

Data Source: US Census - ACS 5-Year (CVAP).

See this for other years:

Oregon Citizen Population By County in 2010

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County	Citizen Population	% of County Population
Multnomah	652760	91.68
Washington	462100	89.44
Clackamas	353400	95.39
Lane	334650	96.40
Marion	276125	89.10
Jackson	193455	96.45
Deschutes	149900	96.98
Linn	111050	97.14
Douglas	105630	98.53
Yamhill	91610	94.51
Josephine	80745	98.27
Benton	79865	94.90
Polk	70640	95.79
Umatilla	68855	92.05
Klamath	64550	97.04
Coos	62495	98.70
Columbia	48175	98.31
Lincoln	44135	96.25
Clatsop	35650	96.72
Malheur	29030	92.67
Union	24825	97.83
Tillamook	24145	95.81
Wasco	22890	92.69
Curry	22120	98.71
Crook	20850	96.91
Jefferson	20160	93.12
Hood River	18580	85.60
Baker	16140	99.94
Morrow	9635	86.72
Lake	7805	99.05
Grant	7325	99.66
Harney	7310	99.25
Wallowa	6885	99.49
Sherman	1765	96.98
Gilliam	1635	94.51
Wheeler	1420	98.27