Columbia County Population 2018

Columbia County's estimated population is 51,782 with a growth rate of 1.76% in the past year according to the most recent United States census data. Columbia County is the 17th largest county in Oregon.

Year Population Growth Growth Rate
201751,7828961.76%
201650,8861,2382.49%
201549,6481690.34%
201449,4792410.49%
201349,238560.11%
201249,182-190-0.38%
201149,372190.04%
201049,35311,79631.41%
199037,5571,9115.36%
198035,6466,85623.81%
197028,7906,41128.65%
196022,379-588-2.56%
195022,9671,9969.52%
194020,9719244.61%
193020,0476,08743.60%
192013,9603,38031.95%
191010,5804,34369.63%
19006,2371,04620.15%
18905,1913,149154.21%
18802,0421,179136.62%
187086333162.22%
18605320.00%

Columbia County Population Growth

Population Data via

Columbia County Race Data

Race Population Percentage
White46,14989.12%
Two or More Races1,7823.44%
American Indian and Alaska Native7031.36%
Asian5241.01%
Black or African American2940.57%
Native Hawaiian and Other Pacific Islander1130.22%

Columbia County Population Pyramid

0k1k1k2k2k Male Population0k1k1k2k2k Female Population8580757065605550454035302520151050
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990