Boulder, CO Metro Area Immigration

Population

The Boulder Metropolitan Statistical Area (MSA) population 1/ increased from 131,889 in 1970 to 294,567 in 2010. That was an increase of 123.3 percent.

The foreign-born (FB) population increased from 3,811 in 1970 to 32,413 in 2010. That was an increase of 750.5 percent. The foreign-born share changed from 2.9 percent to 11.0 percent.

The share of the overall population that was native-born (NB) increased by 104.7 percent.

	Boulder MSA: Population  1960-2010

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 primary factor in population increase in the first and third period and B-D held that position in the second period.

The second chart shows the same data but with an adjustment to reflect births to immigrants shifted to NIM. In it, NIM switched positions with B-D as the major source of population increase in the second period.

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

		B-D	NDM	 NIM						B-D	NDM	NIM	
	90-'99	38.5%  48.1%	13.4%					90-'99	30.0%	48.1%	31.3%
	00-'09	63.1%	neg.	36.9%					00-'09	46.3%	 neg.	53.7%
	10-'14	31.4%  49.1%	19.5%					10-'14	18.6%	49.1%	32.4%

1/ Boulder County

Links:

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