Thanks to NHGIS IPUMS (IPUMS NHGIS, University of Minnesota, www.nhgis.org) I was able to download Oregon housing unit data to the county level for the 1990, 2000, 2010, and 2020 Census. Here's a link to the terms and conditions for use of their data. I used the geographically standardized tables option for my download; an explanation is HERE.
I prepared a 4 page legal sized PDF file HERE that shows counts for all Oregon counties for those years.
It includes count of total units, occupied units, and vacant units. It also includes calculations of numerical and percentage changes in these counts. (County percentage increases in units higher than the statewide percentage increase are conditionally highlighted in green).
I also pasted a Portland metro focused table pasted below that shows the total units for each of those Census periods as well as the increase in total units for each period.
Some observations:
The total increase in Oregon housing units slowed significantly from 2010-2020, increasing by 138,135 units. That was a substantially smaller increase that the 222,854 unit increase from 2000-2010 and the 259,141 unit increase from 1990-2000. Put another way the 138,135 increase from 2010 to 2020 accounted for only 22% of the total 620,180 total increase in housing units over a 30 year period.
Multnomah county had 28% /39,164 of the total 138,135 increase in Oregon housing units from 2010-2020. That is a substantially larger share of the total increase than in prior Census periods. From 2000-2010 the Multnomah county share of the total increase in Oregon housing units was 16% and from 1990 to 2000 it was only 13%,
The 3 county Portland metro area had 55%/76,541 of the total 138,135 increase in Oregon housing units from 2010-2020. That is a majority of the total statewide increase and also a larger share of the total statewide increase than in prior Census periods. From 2000-2010 the 3 county Portland metro share of the total increase in Oregon housing units was 40% and from 1990 to 2000 it was 44%.
Originally created and posted on the Oregon Housing Blog.
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