The foreign-born (FB) population increased from 4,097 in 1970 to 30,673 in 2010. That was an increase of 648.7 percent. The foreign-born share changed from 5.2 percent to 22.5 percent.
The share of the overall population that was native-born (NB) increased by 41.0 percent.
Napa MSA: Population 1970-2010
The first chart below shows the three population change factors for three periods adjusted for annual average amounts. International migration (NIM) was the primary source of added population in the first two periods, replaced by NDM and NIM in the most recent period.
The second chart shows the same data but with an adjustment to reflect births to immigrants shifted to NIM. In it, NIM was the principal contributor of population in all periods. The negative natural change (B-D) indicates that the greater number of births than deaths in the first chart was due exclusively to the foreign-born population.
Napa MSA: Sources of Population Change 1990-2014 Napa MSA: Sources of Population Change (Adjusted) 1990-2014
B-D NDM NIM B-D NDM NIM 90-'99 24.8% 22.6% 52.6% 90-'99 neg. 21.0% 79.0% 00-'09 33.0% 12.3% 54.7% 00-'09 neg. 10.7% 89.3% 10-'14 23.6 38.2% 38.2% 10-'14 neg. 31.7% 68.3%
1/ Napa County.
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