Population estimates for Nassau and Suffolk
Suffolk County experienced a fifth year of population loss in 2018, down 2,478 residents to 1,481,093, while Nassau continued to rise, up 679 to 1,358,343, according to the latest annual estimates from the Census Bureau. Here are details on the population shift for each county.
The overall population — Nassau is up and Suffolk is down
Click through on the right for these seven charts; select bars or data points for details.
Details in the table below, and you can read more about Long Island’s population trends here.
The details on these and other measures
Figures from the charts, with additional measures. Rates are per 1,000 residents.
| Category/Year | Nassau County | Suffolk County |
|---|---|---|
| Population estimate 2011 | 1,346,176 | 1,498,838 |
| Population estimate 2012 | 1,349,723 | 1,497,037 |
| Population estimate 2013 | 1,352,399 | 1,497,489 |
| Population estimate 2014 | 1,355,029 | 1,495,757 |
| Population estimate 2015 | 1,355,319 | 1,492,278 |
| Population estimate 2016 | 1,356,463 | 1,486,804 |
| Population estimate 2017 | 1,357,664 | 1,483,571 |
| Population estimate 2018 | 1,358,343 | 1,481,093 |
| Net population change 2011 | 4,489 | 4,453 |
| Net population change 2012 | 3,547 | -1,801 |
| Net population change 2013 | 2,676 | 452 |
| Net population change 2014 | 2,630 | -1,732 |
| Net population change 2015 | 290 | -3,479 |
| Net population change 2016 | 1,144 | -5,474 |
| Net population change 2017 | 1,201 | -3,233 |
| Net population change 2018 | 679 | -2,478 |
| Births 2011 | 14,304 | 16,465 |
| Births 2012 | 14,170 | 16,057 |
| Births 2013 | 13,781 | 15,617 |
| Births 2014 | 14,232 | 15,554 |
| Births 2015 | 14,318 | 15,819 |
| Births 2016 | 14,366 | 15,776 |
| Births 2017 | 14,318 | 15,461 |
| Births 2018 | 14,117 | 15,210 |
| Deaths 2011 | 10,903 | 11,572 |
| Deaths 2012 | 10,743 | 11,464 |
| Deaths 2013 | 11,399 | 11,947 |
| Deaths 2014 | 10,548 | 11,571 |
| Deaths 2015 | 11,024 | 11,770 |
| Deaths 2016 | 10,856 | 11,793 |
| Deaths 2017 | 11,215 | 12,731 |
| Deaths 2018 | 11,419 | 13,061 |
| International migration 2011 | 3,087 | 3,487 |
| International migration 2012 | 3,365 | 3,393 |
| International migration 2013 | 3,001 | 2,863 |
| International migration 2014 | 3,171 | 2,962 |
| International migration 2015 | 3,221 | 2,961 |
| International migration 2016 | 3,353 | 3,121 |
| International migration 2017 | 2,497 | 2,327 |
| International migration 2018 | 2,478 | 2,367 |
| Domestic migration 2011 | -1,890 | -3,855 |
| Domestic migration 2012 | -3,143 | -9,874 |
| Domestic migration 2013 | -2,609 | -6,023 |
| Domestic migration 2014 | -4,136 | -8,682 |
| Domestic migration 2015 | -6,181 | -10,508 |
| Domestic migration 2016 | -5,701 | -12,599 |
| Domestic migration 2017 | -4,366 | -8,297 |
| Domestic migration 2018 | -4,476 | -7,004 |
| Net migration 2011 | 1,197 | -368 |
| Net migration 2012 | 222 | -6,481 |
| Net migration 2013 | 392 | -3,160 |
| Net migration 2014 | -965 | -5,720 |
| Net migration 2015 | -2,960 | -7,547 |
| Net migration 2016 | -2,348 | -9,478 |
| Net migration 2017 | -1,869 | -5,970 |
| Net migration 2018 | -1,998 | -4,637 |
| Birth rate 2011 | 10.64339961 | 11.0015191 |
| Birth rate 2012 | 10.51226326 | 10.71940585 |
| Birth rate 2013 | 10.2001316 | 10.43036527 |
| Birth rate 2014 | 10.51329897 | 10.39273084 |
| Birth rate 2015 | 10.56543293 | 10.58822939 |
| Birth rate 2016 | 10.59524696 | 10.59118212 |
| Birth rate 2017 | 10.5507222 | 10.4101334 |
| Birth rate 2018 | 10.39540767 | 10.26085924 |
| Death rate 2011 | 8.112764676 | 7.732133556 |
| Death rate 2012 | 7.969883145 | 7.653189803 |
| Death rate 2013 | 8.43707279 | 7.979226095 |
| Death rate 2014 | 7.791896959 | 7.731405972 |
| Death rate 2015 | 8.134748748 | 7.878087104 |
| Death rate 2016 | 8.006543299 | 7.917204025 |
| Death rate 2017 | 8.264167447 | 8.571981652 |
| Death rate 2018 | 8.408667577 | 8.811116538 |
| International migration rate 2011 | 2.296992071 | 2.329929979 |
| International migration rate 2012 | 2.496384323 | 2.265114533 |
| International migration rate 2013 | 2.221217251 | 1.912155714 |
| International migration rate 2014 | 2.342444564 | 1.979122331 |
| International migration rate 2015 | 2.376816556 | 1.981904496 |
| International migration rate 2016 | 2.472912646 | 2.09527633 |
| International migration rate 2017 | 1.840002329 | 1.566805538 |
| International migration rate 2018 | 1.824737565 | 1.596808272 |
| Domestic migration rate 2011 | -1.406321676 | -2.575818775 |
| Domestic migration rate 2012 | -2.331689726 | -6.591730296 |
| Domestic migration rate 2013 | -1.931074911 | -4.022673371 |
| Domestic migration rate 2014 | -3.055298239 | -5.80106012 |
| Domestic migration rate 2015 | -4.561037918 | -7.033384816 |
| Domestic migration rate 2016 | -4.204615268 | -8.458310312 |
| Domestic migration rate 2017 | -3.217240755 | -5.586500021 |
| Domestic migration rate 2018 | -3.296015069 | -4.724987385 |
| Net migration rate 2011 | 0.890670395 | -0.245888796 |
| Net migration rate 2012 | 0.164694597 | -4.326615763 |
| Net migration rate 2013 | 0.29014234 | -2.110517658 |
| Net migration rate 2014 | -0.712853675 | -3.821937789 |
| Net migration rate 2015 | -2.184221362 | -5.051480321 |
| Net migration rate 2016 | -1.731702622 | -6.363033982 |
| Net migration rate 2017 | -1.377238427 | -4.019694483 |
| Net migration rate 2018 | -1.471277504 | -3.128179112 |