Population estimates are prepared as of July 1 of each year.
Preliminary estimates are released around November 15 each year; we send them to state and local jurisdictions and community partners and post them here.
Certified estimates are posted on December 15.
Supplemental reports are published quarterly, and are posted here two weeks after the end of each quarter. These reflect changes in population due to annexations and other revisions.
The annual Oregon Population Report is published in the following spring, usually by mid-April. The Report presents the population estimates for Oregon and its counties and incorporated cities. It contains ten tables, including the population rank for incorporated cities, the population by metropolitan areas, population for proportions of Oregon's incorporated cities that are located in more than one county, information on the annexed population added to incorporated cities, and estimates for the population by age and sex for counties.
Submissions from 2020
2019 Annual Population Report Tables (April 15, 2020), Portland State University. Population Research Center
Submissions from 2019
2018 Annual Population Report Tables (April 15, 2019), Portland State University. Population Research Center
Certified Population Estimates, July 2019, Portland State University. Population Research Center
Estimates of Broad Age Groups by County 2019, Portland State University. Population Research Center
Submissions from 2018
2017 Annual Population Report Tables (April 15, 2018), Portland State University. Population Research Center
Estimates of Broad Age Groups by County 2018, Portland State University. Population Research Center
Certified Population Estimates, July 2018, Portland State University. Population Research Center and Charles Rynerson
Submissions from 2017
2016 Annual Population Report Tables (April 15, 2017), Portland State University. Population Research Center and Risa Proehl
Certified Population Estimates, July 2017, Portland State University. Population Research Center and Charles Rynerson
Estimates of Broad Age Groups by County 2017, Portland State University. Population Research Center and Charles Rynerson
Submissions from 2016
2015 Annual Population Report Tables (April 15, 2016), Portland State University. Population Research Center
Certified Population Estimates 2016, Portland State University. Population Research Center and Risa Proehl
Estimates of Broad Age Groups by County 2016, Portland State University. Population Research Center and Risa Proehl
Estimates of Population Age Groups (ages under 18 yrs., 18-64 yrs., and 65 yrs. and over) for Oregon and Its Counties, July 1, 2015, Risa Proehl and Portland State University. Population Research Center
Findings from the Preliminary 2016 Population Estimates, Risa Proehl and Portland State University. Population Research Center
Submissions from 2015
2014 Annual Population Report Tables (April 22, 2015), Portland State University. Population Research Center
Certified Population Estimates 2015, Portland State University. Population Research Center
Summary of 2015 Estimates Findings, Based on Preliminary Estimates, Portland State University. Population Research Center
Estimates of Population Age Groups (ages under 18 yrs., 18-64 yrs., and 65 yrs. and over) for Oregon and Its Counties, July 1, 2014, Portland State University. Population Research Center and Risa Proehl
Submissions from 2014
2013 Annual Population Report Tables (April 15, 2014), Portland State University. Population Research Center
Certified 2014 Population Estimates for Oregon and Counties, Portland State University. Population Research Center
Estimates of Population Age Groups (ages under 18 yrs., 18-64 yrs., and 65 yrs. and over) for Oregon and Its Counties, July 1, 2013, Portland State University. Population Research Center and Risa Proehl
Summary of 2014 Estimates Findings: Based on Preliminary Estimates, Risa S. Proehl
Submissions from 2013
2012 Annual Population Report Tables (April 19, 2013), Portland State University. Population Research Center
Certified 2013 Population Estimates for Oregon and Counties, Portland State University. Population Research Center
Estimates of Population Age Groups (ages under 18 yrs., 18-64 yrs., and 65 yrs. and over) for Oregon and Its Counties, July 1, 2012, Portland State University. Population Research Center and Risa Proehl
Submissions from 2012
2000-2010 Intercensal Estimates: Components of Population Change, Portland State University. Population Research Center
2011 Annual Population Report Tables (March 28, 2012), Portland State University. Population Research Center
Certified 2012 Population Estimates for Oregon and Its Counties, Portland State University. Population Research Center
Estimates of Population Age Groups (ages under 18 yrs., 18-64 yrs., and 65 yrs. and over) for Oregon and Its Counties, July 1, 2011, Portland State University. Population Research Center and Risa Proehl
Population Forecast for Yamhill County Oregon, its Cities and Unincorporated Area 2011-2035, Portland State University. Population Research Center, Risa S. Proehl, Vivian Siu, and Kevin Rancik
Submissions from 2011
2000-2009 County Intercensal Estimates, Portland State University. Population Research Center
2010 Annual Population Report (April 22, 2011), Portland State University. Population Research Center
Certified 2011 Population Estimates for Oregon and Counties, Portland State University. Population Research Center
Population Tables for State, Counties and Cities, Portland State University. Population Research Center
2010 Oregon Revised Population Estimates, Portland State University. Population Research Center and Risa Proehl
Population Forecasts for the Tri-City ServiceDistrict, Clackamas County Service District #1, Clackamas County Service District #1 with all Damascus, and the City of Milwaukie 2010-2040, Portland State University. Population Research Center, Risa S. Proehl, Kanhaiya Vaidya, Bimal RajBhandary, and Kevin Rancik
Submissions from 2010
2000-2009 Intercensal Population Estimates by Age Group for Oregon and Counties, Portland State University. Population Research Center
Estimates for Population Ages 4-20 Years for Oregon and Its Counties, Portland State University. Population Research Center and Risa Proehl
Estimates of Population Age Groups (ages under 18 yrs., 18-64 yrs., and 65 yrs. and over) for Oregon and Its Counties, July 1, 2010, Portland State University. Population Research Center and Risa Proehl
2009 Oregon Population Report, Portland State University. Population Research Center, Risa Proehl, and Julia Crain
Submissions from 2009
2008 Oregon Population Report, Portland State University. Population Research Center, Risa Proehl, George C. Hough Jr., and Kathryn McGovern
Population Forecast for Lane County, its Cities and Unincorporated Area 2008-2035, Portland State University. Population Research Center, Risa S. Proehl, George C. Hough Jr., Danan Ru, Kenneth Radin, and Mark Gilbert
Population Forecast for Columbia County Oregon, its Cities and Unincorporated Area 2010-2030, Portland State University. Population Research Center, Charles Rynerson, and Kenneth Radin
Submissions from 2008
2007 Oregon Population Report, Portland State University. Population Research Center, Risa Proehl, and George C. Hough Jr.
Population Forecasts for Marion County, its Cities and Unincorporated Area 2010-2030, Portland State University. Population Research Center, Risa Proehl, Charles Rynerson, Kenneth Radin, and Joseph Smith-Buani
Submissions from 2007
2006 Oregon Population Report, Portland State University. Population Research Center, Risa Proehl, and George C. Hough Jr.
Submissions from 2006
2005 Oregon Population Tables, Portland State University. Population Research Center
Submissions from 2005
2004 Oregon Population Report, Portland State University. Population Research Center, Qian Cai, Barry Edmonston, and George C. Hough Jr.
Submissions from 2004
2003 Oregon Population Report, Portland State University. Population Research Center, Qian Cai, and George C. Hough Jr.
Submissions from 2003
Population Growth in Oregon: 2000 to 2002, Portland State University. Population Research Center, Qian Cai, Barry Edmonston, and George C. Hough Jr.
Submissions from 2002
2001 Oregon Population Report, Portland State University. Population Research Center, Qian Cai, and George C. Hough Jr.
Submissions from 2001
2000 Oregon Population Estimates Report, Portland State University. Population Research Center, Qian Cai, Barry Edmonston, and George C. Hough Jr.
Submissions from 2000
Oregon's Changing Demographics 2000, George C. Hough Jr. and Portland State University. Population Research Center
Submissions from 1999
1999 Oregon Population Report, Qian Cai and Portland State University. Population Research Center
1998 Oregon Population Report, Barry Edmonston, George C. Hough Jr., and Jin Cheol Jo
Submissions from 1998
Population Estimates for Oregon: July 1, 1997, Howard Wineberg and Population Research Center, Portland State University
Submissions from 1997
Population Estimates for Oregon: July 1, 1996, Howard Wineberg and Population Research Center, Portland State University
Submissions from 1996
Population Estimates for Oregon: July 1, 1995, Howard Wineberg and Population Research Center, Portland State University
Experimental Race Estimates for Oregon: July 1, 1993, Howard Wineberg and Portland State University. Population Research Center
Submissions from 1995
Population Estimates for Oregon: July 1, 1994, Howard Wineberg and Population Research Center, Portland State University
Do All Trails Lead to Oregon? An Analysis of the Characteristics of People Moving to and from Oregon, Howard Wineberg and Portland State University. Population Research Center
Submissions from 1994
Population Estimates for Oregon: July 1, 1993, Howard Wineberg and Population Research Center, Portland State University
Submissions from 1993
Population Estimates for Oregon: July 1, 1992, Howard Wineberg and Population Research Center, Portland State University
Submissions from 1992
Population Estimates for Oregon 1980-1991, Population Research Center, Portland State University
Submissions from 1991
1990 Census Counts of Oregon Counties, Cities, and Census Designated Places by Race and Age, Population Research Center, Portland State University
Submissions from 1990
Population Estimates for Oregon 1980-1989, Population Research Center, Portland State University
Submissions from 1989
Official Population Estimates: Oregon Counties and Cities July 1, 1978 - July 1, 1988, Population Research Center, Portland State University
Submissions from 1988
Official Population Estimates for Oregon Counties and Cities July 1, 1978-July 1, 1987, Portland State University. Population Research Center
Submissions from 1975
Population Estimates, Oregon Counties and Incorporated Cities, Portland State University. Center for Population Research and Census
Submissions from 1969
Oregon Population: Counties and Cities July 1, 1968, Population Research Center, Portland State University
Submissions from 1963
Population Estimates of Counties and Incorporated Cities of Oregon, Portland State University. Population Research Center
Submissions from 1962
Population Estimates of Counties and Incorporated Cities of Oregon, Portland State University. Population Research Center