Portland-Vancouver-Hillsboro, OR-WA Metro Area Immigration

Population

The Portland-Vancouver-Hillsboro Metropolitan Statistical Area (MSA) population 1/ increased from 1,083,977 in 1970 to 2,226,009 in 2010. That was an increase of 105.4 percent.

The foreign-born (FB) population increased from 43,179 in 1970 to 277,947 in 2010. That was an increase of 543.7 percent. The foreign-born share changed from 4.0 percent to 12.5 percent.

The share of the overall population that was native-born (NB) increased by 87.2 percent.

	Portland MSA: Population  1970-2010

Sources of Population Change

The primary sources of population change are:

Natural Change [Births minus Deaths or B-D];
Net Domestic Migration [NDM - movement between states]; and
Net International Migration [NIM - movement into and out of the country].
There is also a residual "other" amount that isn't placed in one of those three categories.

The first chart below shows the three population change factors for three periods adjusted for annual average amounts. Domestic migration (NDM) was the principal factor adding population increase in the first period, and B-D had that role in the two most recent periods.

The second chart shows the same data but with an adjustment to reflect births to immigrants shifted to NIM. In it, NIM replaced B-D as the primary factor in population increase in the second period.

	Portland MSA: Sources of Population Change 1990-2014 		Portland MSA: Sources of Population Change (Adjusted) 1990-2014

		B-D	 NDM	 NIM						 B-D	 NDM	 NIM	
	90-'99	32.9%	52.8%	14.3%					90-'99	 22.7%	52.8%	24.5%
	00-'09	39.3%	37.5%	22.7%					00-'09	 22.5%	37.5%	39.9%
	10-'14	41.3%	40.6%	18.1%					10-'14	 20.8%	40.6%	38.6%

1/ Oregon counties: Clackamas, Columbia, Multnomah, Washington, and Yamhill; Washington counties: Clark and Skamania.

Links:

MSA Factsheets by state, and alphabetically.

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