class: center, middle, inverse, title-slide .title[ # Oregon Population Forecast Program ] .subtitle[ ## Proposal Forecasts for Counties & UGBs ] .author[ ### Polk County ] .institute[ ### Portland State University Population Research Center ] .date[ ### February 2025 ] --- class: center # Comments or Questions? ## Contact PSUPRC Email: [askprc@pdx.edu](mailto:askprc@pdx.edu) Telephone: 503-725-3922 ## Preliminary Population Projections https://www.pdx.edu/population-research/population-forecasts --- class: center # PSUPRC Project Team .pull-left[ **Huda Alkitkat, PhD.** *Population Estimates Manager* **Seth Dowden** *Research Assistant* **Neal Marquez, PhD.** *Population Forecast Manager* **Gilbert Montcho, PhD.** *Demographic & Labor Econ Analyst* **Scott Nordstrom, PhD.** *Post-Doctoral Researcher* ] .pull-right[ **Ethan Sharygin, PhD.** *Director* **Aja Sutton, PhD.** *Post-Doctoral Researcher* **David Swanson, PhD.** *Research Associate* **Suniva Thangaraj** *Program Manager* **Joshua Wilde, PhD.** *Research Scientist* ] --- # Polk County Outline - Introduction - Updates - County Overview - UGB Forecasts <style type="text/css"> .pulll-left { float: left; width: 20%; } .pulll-right { float: right; width: 68%; } </style> <style type="text/css"> .pux-left { float: left; width: 38%; } .pux-right { float: right; width: 58%; } </style> <style type="text/css"> .puz-left { float: left; width: 58%; } .puz-right { float: right; width: 38%; } </style> <style type="text/css"> .city table { font-size: 14px; } </style> --- # PSUPRC OPFP Population Forecasts .puz-left[ - For the purposes of land use planning PSUPRC generates population forecasts - For counties, urban growth boundaries (UGBs), and areas outside UGBs - These forecasts must - Be updated at least every four years - Cover a 50 year forecast horizon - Include most up to date data - Allow for public input/objections - Methods & results publicly available ] .puz-right[  ] --- # Oregon Population Forecast Program Cycle  --- # Methods Review: Cohort Component Method .pux-left[ - For Counties - Births = Females 15-50 * Birth Rate - Both number of and rate of births in OR decreasing - Deaths = All Population * Death Rate - While number of deaths are increasing rate of deaths decreasing - Migration = Past migration events - Average of past migration is most likely scenario moving forward ] .pux-right[  ] --- # Methods Review: Housing Unit Method .pull-left[ - For UGBs - `\(P_t = P_{t-1} + \Delta HU*PPH*OCC\)` - `\(PPH\)`: Persons per household - Estimated from most recent census data - `\(OCC\)`: Occupancy Rate - Estimated from most recent census data - `\(\Delta HU\)`: annual change in housing units - Modeled based on past housing unit growth trends ] .pull-right[  ] --- # After this meeting - Email for further follow up - March 15, 2025 forecast discussion period ends - Chance to formally appeal until May 5, 2025 - Will review appeals in the following week - No further changes will be made after May 15, 2025 - Reports and data tables will be available June 15, 2025 --- class: center, middle, inverse # Updates --- # Survey and Preliminary Meeting Feedback - Received housing and general survey responses from over 20 organizations - Updated GIS UGB boundary lines - Account for large public works alter housing development trajectories - Incorporate group quarter expansions - Adjusted housing unit productions - Housing build moratoriums - General concerns - Restrictions on development - Access to others responses --- # Incoporation of 2024 Certified Estimates  --- # Agreement from US Census Bureau Concerning Oregon's Growth  --- # Fertility Changes  --- # Life Expectancy Changes  # Housing Developments  --- class: center, middle, inverse # Polk County Forecast --- # Polk County at a Glance <table> <thead> <tr> <th style="text-align:left;"> Statistic </th> <th style="text-align:left;"> Polk </th> <th style="text-align:left;"> Oregon </th> </tr> </thead> <tbody> <tr> <td style="text-align:left;"> Total Population </td> <td style="text-align:left;"> 87,433 </td> <td style="text-align:left;"> 4,237,256 </td> </tr> <tr> <td style="text-align:left;"> Population Aged 0-17 </td> <td style="text-align:left;"> 22.21% </td> <td style="text-align:left;"> 20.20% </td> </tr> <tr> <td style="text-align:left;"> Population Aged 65+ </td> <td style="text-align:left;"> 18.53% </td> <td style="text-align:left;"> 18.25% </td> </tr> <tr> <td style="text-align:left;"> Population non-White </td> <td style="text-align:left;"> 20.97% </td> <td style="text-align:left;"> 23.41% </td> </tr> <tr> <td style="text-align:left;"> Persons per Household </td> <td style="text-align:left;"> 2.66 (33,828 units) </td> <td style="text-align:left;"> 2.48 (1,813,747 units) </td> </tr> </tbody> </table> --- # Polk County Beyond the Census
--- # Polk Employment Changes
--- # Polk Migration Flows
--- # Polk Population .pulll-left[ We project that Polk's population will continue to grow, albeit at a slower rate than what has been observed in the past. ] .pulll-right[
] --- # Polk Compositional Changes .pulll-left[ Historically, population growth has come from natural change and net migration. In the future it will be driven solely by net migration. ] .pulll-right[
] --- # Polk Births .pulll-left[ Birth numbers are low for Polk County, and will continue to decline in the future as fertilty rates decrease. ] .pulll-right[
] --- # Polk Deaths .pulll-left[ Deaths in Polk County will increase as the population ages. ] .pulll-right[
] --- # Polk Life Expectancy & TFR <img src="Polk_files/figure-html/unnamed-chunk-14-1.png" width="750px" height="500px" /> --- # Population Pyramids .pulll-left[ Polk's population age structure will continue to be heavily influenced by the college age population. ] .pulll-right[
] --- # Polk Race and Ethnicity .pulll-left[ Polk's non-White population will continue to grow more quickly than the White population. ] .pulll-right[
] --- # Polk UGB Population Changes
--- class: center, middle, inverse # Polk UGB Forecasts --- class: city # Polk UGBs: Dallas in Context .pux-right[ <img src="Polk_files/figure-html/unnamed-chunk-18-1.png" width="800px" height="400px" /> ] .pux-left[ <table> <thead> <tr> <th style="text-align:left;"> Metric </th> <th style="text-align:left;"> 1980 </th> <th style="text-align:left;"> 2000 </th> <th style="text-align:left;"> 2020 </th> </tr> </thead> <tbody> <tr> <td style="text-align:left;"> Pop 65+ </td> <td style="text-align:left;"> 15.53% </td> <td style="text-align:left;"> 17.51% </td> <td style="text-align:left;"> 23.26% </td> </tr> <tr> <td style="text-align:left;"> Housing Units </td> <td style="text-align:left;"> 3,322 </td> <td style="text-align:left;"> 4,912 </td> <td style="text-align:left;"> 6,890 </td> </tr> <tr> <td style="text-align:left;"> Housing Occupancy </td> <td style="text-align:left;"> 94.97% </td> <td style="text-align:left;"> 95.11% </td> <td style="text-align:left;"> 96.49% </td> </tr> <tr> <td style="text-align:left;"> Persons Per Household </td> <td style="text-align:left;"> 2.60 </td> <td style="text-align:left;"> 2.57 </td> <td style="text-align:left;"> 2.48 </td> </tr> <tr> <td style="text-align:left;"> Household Income </td> <td style="text-align:left;"> $60,706 </td> <td style="text-align:left;"> $67,183 </td> <td style="text-align:left;"> $84,430 </td> </tr> <tr> <td style="text-align:left;"> Employment Rate </td> <td style="text-align:left;"> 88.39% </td> <td style="text-align:left;"> 92.79% </td> <td style="text-align:left;"> 94.85% </td> </tr> </tbody> </table> ] --- # Dallas Beyond the Census
--- # Dallas Beyond the Census
--- # Polk County: Dallas UGB Boundaries
--- # Dallas UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-23-1.png" width="750px" height="500px" /> --- # Dallas UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-24-1.png" width="750px" height="500px" /> --- class: city # Polk UGBs: Falls City in Context .pux-right[ <img src="Polk_files/figure-html/unnamed-chunk-25-1.png" width="800px" height="400px" /> ] .pux-left[ <table> <thead> <tr> <th style="text-align:left;"> Metric </th> <th style="text-align:left;"> 1980 </th> <th style="text-align:left;"> 2000 </th> <th style="text-align:left;"> 2020 </th> </tr> </thead> <tbody> <tr> <td style="text-align:left;"> Pop 65+ </td> <td style="text-align:left;"> 14.18% </td> <td style="text-align:left;"> 14.49% </td> <td style="text-align:left;"> 16.18% </td> </tr> <tr> <td style="text-align:left;"> Housing Units </td> <td style="text-align:left;"> 311 </td> <td style="text-align:left;"> 373 </td> <td style="text-align:left;"> 416 </td> </tr> <tr> <td style="text-align:left;"> Housing Occupancy </td> <td style="text-align:left;"> 90.68% </td> <td style="text-align:left;"> 90.62% </td> <td style="text-align:left;"> 94.23% </td> </tr> <tr> <td style="text-align:left;"> Persons Per Household </td> <td style="text-align:left;"> 2.85 </td> <td style="text-align:left;"> 2.86 </td> <td style="text-align:left;"> 2.68 </td> </tr> <tr> <td style="text-align:left;"> Household Income </td> <td style="text-align:left;"> $45,944 </td> <td style="text-align:left;"> $60,634 </td> <td style="text-align:left;"> $48,677 </td> </tr> <tr> <td style="text-align:left;"> Employment Rate </td> <td style="text-align:left;"> 77.15% </td> <td style="text-align:left;"> 88.34% </td> <td style="text-align:left;"> 85.97% </td> </tr> </tbody> </table> ] --- # Falls City Beyond the Census
--- # Falls City Beyond the Census
--- # Polk County: Falls City UGB Boundaries
--- # Falls City UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-30-1.png" width="750px" height="500px" /> --- # Falls City UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-31-1.png" width="750px" height="500px" /> --- class: city # Polk UGBs: Independence in Context .pux-right[ <img src="Polk_files/figure-html/unnamed-chunk-32-1.png" width="800px" height="400px" /> ] .pux-left[ <table> <thead> <tr> <th style="text-align:left;"> Metric </th> <th style="text-align:left;"> 1980 </th> <th style="text-align:left;"> 2000 </th> <th style="text-align:left;"> 2020 </th> </tr> </thead> <tbody> <tr> <td style="text-align:left;"> Pop 65+ </td> <td style="text-align:left;"> 10.74% </td> <td style="text-align:left;"> 9.03% </td> <td style="text-align:left;"> 9.73% </td> </tr> <tr> <td style="text-align:left;"> Housing Units </td> <td style="text-align:left;"> 1,520 </td> <td style="text-align:left;"> 2,131 </td> <td style="text-align:left;"> 3,466 </td> </tr> <tr> <td style="text-align:left;"> Housing Occupancy </td> <td style="text-align:left;"> 92.70% </td> <td style="text-align:left;"> 93.57% </td> <td style="text-align:left;"> 96.22% </td> </tr> <tr> <td style="text-align:left;"> Persons Per Household </td> <td style="text-align:left;"> 2.80 </td> <td style="text-align:left;"> 2.98 </td> <td style="text-align:left;"> 2.93 </td> </tr> <tr> <td style="text-align:left;"> Household Income </td> <td style="text-align:left;"> $53,161 </td> <td style="text-align:left;"> $68,720 </td> <td style="text-align:left;"> $91,173 </td> </tr> <tr> <td style="text-align:left;"> Employment Rate </td> <td style="text-align:left;"> 85.64% </td> <td style="text-align:left;"> 90.35% </td> <td style="text-align:left;"> 95.60% </td> </tr> </tbody> </table> ] --- # Independence Beyond the Census
--- # Independence Beyond the Census
--- # Polk County: Independence UGB Boundaries
--- # Independence UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-37-1.png" width="750px" height="500px" /> --- # Independence UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-38-1.png" width="750px" height="500px" /> --- class: city # Polk UGBs: Monmouth in Context .pux-right[ <img src="Polk_files/figure-html/unnamed-chunk-39-1.png" width="800px" height="400px" /> ] .pux-left[ <table> <thead> <tr> <th style="text-align:left;"> Metric </th> <th style="text-align:left;"> 1980 </th> <th style="text-align:left;"> 2000 </th> <th style="text-align:left;"> 2020 </th> </tr> </thead> <tbody> <tr> <td style="text-align:left;"> Pop 65+ </td> <td style="text-align:left;"> 5.85% </td> <td style="text-align:left;"> 8.91% </td> <td style="text-align:left;"> 10.25% </td> </tr> <tr> <td style="text-align:left;"> Housing Units </td> <td style="text-align:left;"> 2,156 </td> <td style="text-align:left;"> 2,934 </td> <td style="text-align:left;"> 3,932 </td> </tr> <tr> <td style="text-align:left;"> Housing Occupancy </td> <td style="text-align:left;"> 93.92% </td> <td style="text-align:left;"> 93.97% </td> <td style="text-align:left;"> 92.70% </td> </tr> <tr> <td style="text-align:left;"> Persons Per Household </td> <td style="text-align:left;"> 2.45 </td> <td style="text-align:left;"> 2.50 </td> <td style="text-align:left;"> 2.67 </td> </tr> <tr> <td style="text-align:left;"> Household Income </td> <td style="text-align:left;"> $41,892 </td> <td style="text-align:left;"> $60,251 </td> <td style="text-align:left;"> $76,162 </td> </tr> <tr> <td style="text-align:left;"> Employment Rate </td> <td style="text-align:left;"> 92.91% </td> <td style="text-align:left;"> 89.65% </td> <td style="text-align:left;"> 95.12% </td> </tr> </tbody> </table> ] --- # Monmouth Beyond the Census
--- # Monmouth Beyond the Census
--- # Polk County: Monmouth UGB Boundaries
--- # Monmouth UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-44-1.png" width="750px" height="500px" /> --- # Monmouth UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-45-1.png" width="750px" height="500px" /> --- class: city # Polk UGBs: Salem in Context .pux-right[ <img src="Polk_files/figure-html/unnamed-chunk-46-1.png" width="800px" height="400px" /> ] .pux-left[ <table> <thead> <tr> <th style="text-align:left;"> Metric </th> <th style="text-align:left;"> 1980 </th> <th style="text-align:left;"> 2000 </th> <th style="text-align:left;"> 2020 </th> </tr> </thead> <tbody> <tr> <td style="text-align:left;"> Pop 65+ </td> <td style="text-align:left;"> 13.24% </td> <td style="text-align:left;"> 12.44% </td> <td style="text-align:left;"> 15.35% </td> </tr> <tr> <td style="text-align:left;"> Housing Units </td> <td style="text-align:left;"> 37,125 </td> <td style="text-align:left;"> 53,817 </td> <td style="text-align:left;"> 67,411 </td> </tr> <tr> <td style="text-align:left;"> Housing Occupancy </td> <td style="text-align:left;"> 92.08% </td> <td style="text-align:left;"> 94.16% </td> <td style="text-align:left;"> 95.37% </td> </tr> <tr> <td style="text-align:left;"> Persons Per Household </td> <td style="text-align:left;"> 2.39 </td> <td style="text-align:left;"> 2.53 </td> <td style="text-align:left;"> 2.60 </td> </tr> <tr> <td style="text-align:left;"> Household Income </td> <td style="text-align:left;"> $58,840 </td> <td style="text-align:left;"> $72,626 </td> <td style="text-align:left;"> $83,939 </td> </tr> <tr> <td style="text-align:left;"> Employment Rate </td> <td style="text-align:left;"> 91.23% </td> <td style="text-align:left;"> 91.70% </td> <td style="text-align:left;"> 93.92% </td> </tr> </tbody> </table> ] --- # Salem Beyond the Census
--- # Salem Beyond the Census
--- # Polk County: Salem UGB Boundaries
--- # Salem UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-51-1.png" width="750px" height="500px" /> --- # Salem UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-52-1.png" width="750px" height="500px" /> --- class: city # Polk UGBs: Willamina in Context .pux-right[ <img src="Polk_files/figure-html/unnamed-chunk-53-1.png" width="800px" height="400px" /> ] .pux-left[ <table> <thead> <tr> <th style="text-align:left;"> Metric </th> <th style="text-align:left;"> 1980 </th> <th style="text-align:left;"> 2000 </th> <th style="text-align:left;"> 2020 </th> </tr> </thead> <tbody> <tr> <td style="text-align:left;"> Pop 65+ </td> <td style="text-align:left;"> 12.58% </td> <td style="text-align:left;"> 10.36% </td> <td style="text-align:left;"> 13.76% </td> </tr> <tr> <td style="text-align:left;"> Housing Units </td> <td style="text-align:left;"> 653 </td> <td style="text-align:left;"> 715 </td> <td style="text-align:left;"> 852 </td> </tr> <tr> <td style="text-align:left;"> Housing Occupancy </td> <td style="text-align:left;"> 93.72% </td> <td style="text-align:left;"> 93.15% </td> <td style="text-align:left;"> 94.72% </td> </tr> <tr> <td style="text-align:left;"> Persons Per Household </td> <td style="text-align:left;"> 2.86 </td> <td style="text-align:left;"> 2.77 </td> <td style="text-align:left;"> 2.75 </td> </tr> <tr> <td style="text-align:left;"> Household Income </td> <td style="text-align:left;"> $53,836 </td> <td style="text-align:left;"> $60,382 </td> <td style="text-align:left;"> $67,497 </td> </tr> <tr> <td style="text-align:left;"> Employment Rate </td> <td style="text-align:left;"> 77.45% </td> <td style="text-align:left;"> 95.40% </td> <td style="text-align:left;"> 93.58% </td> </tr> </tbody> </table> ] --- # Willamina Beyond the Census
--- # Willamina Beyond the Census
--- # Polk County: Willamina UGB Boundaries
--- # Willamina UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-58-1.png" width="750px" height="500px" /> --- # Willamina UGB Pop Forecast <img src="Polk_files/figure-html/unnamed-chunk-59-1.png" width="750px" height="500px" /> --- class: center # Comments or Questions? ## Contact PSUPRC Email: [askprc@pdx.edu](mailto:askprc@pdx.edu) Telephone: 503-725-3922 ## Preliminary Population Projections https://www.pdx.edu/population-research/population-forecasts