Rockford, IL Metro Area Immigration

Population

The Rockford Metropolitan Statistical Area (MSA) population 1/ increased from 272,063 in 1970 to 349,431 in 2010. That was an increase of 28.4 percent.

The foreign-born (FB) population increased from 9,772 in 1970 to 27,215 in 2010. That was an increase of 178.5 percent. The foreign-born share changed from 3.6 percent to 7.8 percent.

The share of the overall population that was native-born (NB) increased by 22.8 percent.

	Rockford 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. Natural change (B-D) was the main factor adding population in all periods.

The second chart shows the same data but with an adjustment to reflect births to immigrants shifted to NIM. In it, B-D continued to be the primary factor in adding population in the first two periods, replaced by NIM in the latest period.

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

		B-D	 NDM	 NIM						 B-D	 NDM	  NIM	
	90-'99	75.3%	 8.9%	15.9%					90-'99	 60.5%	 8.9%	30.6%
	00-'09	57.2%	21.0%	21.8%					00-'09	 41.4%	21.0%	37.6%
	10-'14	77.5%	 neg.	22.5%					10-'14	 41.7%	 neg.	58.3%

1/ Boone and Winnebago counties.

Links:

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