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County

NameStatusPopulation
census
1990-04-01
Population
census
2000-04-01
Population
census
2010-04-01
 
ColumbiaCounty37,55743,55349,351
OregonFederal State2,842,3373,421,5243,831,074

Contents: Places

Name StatusCountyPopulation
census
1990-04-01
Population
census
2000-04-01
Population
census
2010-04-01
 
ClatskanieCityColumbia1,5811,6191,737
Columbia CityCityColumbia9921,5661,946
Deer IslandCensus-Designated PlaceColumbia......294
PrescottCityColumbia...6855
RainierCityColumbia1,6321,6701,895
ScappooseCityColumbia3,5504,9016,592
St. HelensCityColumbia7,61610,01212,883
VernoniaCityColumbia1,8182,2742,151
WarrenCensus-Designated PlaceColumbia......1,787

Source: US Census Bureau (web).
2000 and 2010 population of incorporated places in the boundaries of 2010.