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Oregon Adds 58,720 New Residents in Past Year as Growth Rate Rises
Author: David Santen, Office of University Communications (503-725-8789)
Posted: November 16, 2006
Oregon’s population increased from 3,631,440 in 2005 to 3,690,160 in 2006, or by 58,720, according to preliminary July 1, 2006, population estimates released by Portland State University’s Population Research Center.

Most of the state’s population growth in the past year was due to net migration, with an estimate of about 43,355 net migrants moving into the state. Approximately one-quarter of the Oregon’s growth is accounted for by natural increase, with 15,365 more births than deaths.

The change in Oregon’s population is estimated to have increased from 1.4 percent during 2004–2005 to 1.6 percent during 2005–2006. Recent data show an increase in school enrollment, labor force participation, employment, the number of Oregon state tax exemptions claimed, and Medicare enrollment. Oregon’s continuing economic recovery appears to be fueling the state’s increasing net migration rate, and Oregon’s total population growth rate is approaching rates seen in the mid-1990s.

Population growth in four counties (Clackamas, Deschutes, Multnomah and Washington) accounted for almost 60 percent of the state’s overall population change from July 1, 2005, to June 30, 2006. In the metropolitan Portland area, Washington County added an estimated 10,800 persons; Multnomah County, 8,720; and Clackamas County, 5,740. The population in Deschutes County is estimated to have gained 9,125 persons.

The fastest growing Oregon counties, in terms of percent change during the past year, are the neighboring Crook and Deschutes Counties, estimated to have increased in population size by 7.7 percent and 6.4 percent, respectively.

The population of Oregon’s cities and towns is estimated to have gained by 56,120 from 2005 to 2006, with a combined 2006 total of 2,552,670, and capturing about 70 percent of the state’s population. Approximately nine percent of the increase in Oregon’s city/town population was due to annexations. There have been no incorporations this past year.

Population increases occurred in almost all of Oregon’s 241 incorporated cities and towns. Portland, Bend, Redmond, Medford and Grant’s Pass each added over 3,000 persons from July 1, 2005, to June 30, 2006. However, annexations accounted for almost one-third of Medford’s and Redmond’s increases, and almost two-thirds of the increase in Grant’s Pass. Many cities in Oregon have seen larger increases this past year than in previous years.

The Population Research Center develops annual population estimates for Oregon, its counties, and cities and towns. These estimates are based on changes in housing, school enrollment, employment, Medicare enrollment, state tax exemptions, voter registration and other administrative data. The annual population estimates are used in revenue distribution to local governments and in program administration.

Preliminary population estimates can be found at http://www.pdx.edu/prc or as downloadable PDF documents:
Oregon Counties: http://www.pdx.edu/sites/www.pdx.edu.syndication/files/media_assets/PRC_PrelimState_Co06.pdf
Oregon Incorporated Towns and Cities: http://www.pdx.edu/sites/www.pdx.edu.syndication/files/media_assets/PRC_PrelimCities.pdf

The final July 1, 2006 population estimates will be certified in December 2006, following a one-month review period.

For more information or to comment on the preliminary July 1, 2006, population estimates, please contact:
George Hough, director, Population Research Center, 503-725-5159, houghg@pdx.edu; or
Risa Proehl, Population Estimates program manager, 503-725-5103, proehlr@pdx.edu.

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Source:
Risa Proehl (503-725-5103)
Population Research Center
George Hough (503-725-5159)
Population Research Center

FOR IMMEDIATE RELEASE (#06-133)