This project is funded by the State of Oregon through the Department of Land Conservation and Development (DLCD).
Oregon -- Population -- Statistics, Demographic surveys -- Oregon, Population forecasting -- Oregon -- Douglas County
Different growth patterns occur in different parts of the County and these local trends within the UGBs and the area outside UGBs collectively influence population growth rates for the county as a whole.
Douglas County’s total population has grown slowly since 2000, with average annual growth rates of less than one percent between 2000 and 2010 (Figure 1); however, some of its sub-areas experienced more rapid population growth during the 2000s. Sutherlin, the second most populous UGB, and Canyonville posted the highest average annual growth rates at 1.7 and 3.0 percent, respectively, during the 2000 to 2010 period.
Douglas County’s positive population growth in the 2000s was the direct result of substantial net inmigration. Meanwhile an aging population not only led to an increase in deaths, but also resulted in a smaller proportion of women in their childbearing years. This along with more women choosing to have fewer children and have them at older ages has led to fewer births in recent years. The larger number of deaths relative to births caused natural decrease (more deaths than births) in every year from 2000 to 2014. While net in-migration outweighed declining natural increase during the early and middle years of the last decade, the gap between these two numbers shrank during the later years—bringing population growth nearly to a halt by 2010. In more recent years (2010 to 2014) net in-migration has increased, bringing with it population growth
Total population in Douglas County as a whole as well as within its sub-areas will likely grow at a slightly faster pace in the near-term (2015 to 2035) compared to the long-term (Figure 1). The tapering of growth rates is largely driven by an aging population—a demographic trend which is expected to contribute to natural decrease (more deaths than births). As natural decrease occurs, population growth will become increasingly reliant on net in-migration
Even so, Douglas County’s total population is forecast to increase by more than 20,000 over the next 20 years (2015-2035) and by more than 43,000 over the entire 50 year forecast period (2015-2065). Subareas that showed strong population growth in the 2000s are expected to experience similar rates of population growth during the forecast period.
Ruan, Xiaomin, R. Proehl, J. Jurjevich, K. Rancik, J. Kessi, C. Gorecki, and D. Tetrick, "Coordinated Population Forecast for Douglas County, its Urban Growth Boundaries (UGB), and Area Outside UGBs 2015-2065." Portland State University Population Research Center, June 2015.