Intercensal estimates Population estimates adjusted after each decennial census Revised Intercensal Population Estimates 1970 - 1979 Revised Intercensal Population Estimates 1980 - 1989 Revised Intercensal Population Estimates 1990 - 1999 Revised Intercensal Population Estimates 2000 - 2009 Components of Population Change for Oregon and its Counties: April 1, 2010-April 1, 2020 Archived Annual Reports