Brooklyn's population growth question

[Linus Van Pelt]

The Census does not make estimates for sub-municipal areas, but it does report components of population change, which can give some indirect hints. For Brooklyn from 2010-2014:

total population change +117,084
natural increase +111,974 (births 180,295, deaths 68,321)
net migration +6,688 (international +99,123, domestic -92,435)

So, it's really caused by natural increase and international migration, with domestic migration still very negative. I'd guess that the Hasidic areas have the highest birth rate and the Asian and Hispanic areas in (roughly) the southwest of the borough have the highest immigration.

[Linus Van Pelt]

Here are the annual domestic migration estimates for New York County:

DOMESTIC MIGRATION
2010:   -24674
2011:   -84179
2012:   -116346
2013:   -107730
2014:   -153921

For comparison, here are international migration and natural increase estimates:

INTERNATIONAL MIGRATION
2010:   +24130
2011:   +113261
2012:   +110105
2013:   +118929
2014:   +118799

NATURAL INCREASE
2010:   +24510
2011:   +93359
2012:   +93032
2013:   +88431
2014:   +86353

Note that the 2010 numbers only cover three months (4/1/2010 - 6/30/2010).

Where are you getting these numbers? On the census website, the cumulative 2010-2014 net domestic migration for New York County (Manhattan) is -53,493, less than Brooklyn and far less than your total.

[Linus Van Pelt]

OK, no worries - I agree the Census does not have the most user-friendly web site.