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Portland State University

Population forecasting -- Oregon -- Clackamas County

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Full-Text Articles in Demography, Population, and Ecology

Coordinated Population Forecast For Clackamas County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2020-2070, Portland State University. Population Research Center, Nicholas Chun, Kevin Rancik, Paul Runge, Mac Cunningham, Deborah Loftus, Charles Rynerson Jun 2020

Coordinated Population Forecast For Clackamas County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2020-2070, Portland State University. Population Research Center, Nicholas Chun, Kevin Rancik, Paul Runge, Mac Cunningham, Deborah Loftus, Charles Rynerson

Oregon Population Forecast Program

Different areas within Oregon counties experience different growth patterns. Those patterns combine to collectively determine county‐level demographic changes. Clackamas County is comprised of three types of areas: areas within Metro’s jurisdiction, UGB areas outside of Metro’s jurisdiction (Barlow, Canby, Estacada, Molalla, and Sandy), and areas outside of both Metro and those UGBs. In this report, we focus on Clackamas County as a whole as well as non‐ Metro sub‐areas.

Clackamas County’s total population has grown steadily over the last half century, with average annual growth rates exceeding 1 percent in every period except during Oregon’s deep 1980s recession and the …


Coordinated Population Forecast For Clackamas County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris Jun 2017

Coordinated Population Forecast For Clackamas County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience differing growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Clackamas County’s total population has grown steadily since 2000, with an average annual growth rate of 1.1 percent between 2000 and 2010 (Figure 1). However, some of the county’s sub-areas outside of Clackamas County’s Metro boundary experienced more rapid population growth during the 2000s. Sandy and Molalla posted the highest average annual growth rates at 5.6 and 3.8 percent, respectively, during the 2000 to 2010 period.

Clackamas County’s positive population …