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/YearNassau CountySuffolk County
Population estimate 20111,346,1761,498,838
Population estimate 20121,349,7231,497,037
Population estimate 20131,352,3991,497,489
Population estimate 20141,355,0291,495,757
Population estimate 20151,355,3191,492,278
Population estimate 20161,356,4631,486,804
Population estimate 20171,357,6641,483,571
Population estimate 20181,358,3431,481,093
Net population change 20114,4894,453
Net population change 20123,547-1,801
Net population change 20132,676452
Net population change 20142,630-1,732
Net population change 2015290-3,479
Net population change 20161,144-5,474
Net population change 20171,201-3,233
Net population change 2018679-2,478
Births 201114,30416,465
Births 201214,17016,057
Births 201313,78115,617
Births 201414,23215,554
Births 201514,31815,819
Births 201614,36615,776
Births 201714,31815,461
Births 201814,11715,210
Deaths 201110,90311,572
Deaths 201210,74311,464
Deaths 201311,39911,947
Deaths 201410,54811,571
Deaths 201511,02411,770
Deaths 201610,85611,793
Deaths 201711,21512,731
Deaths 201811,41913,061
International migration 20113,0873,487
International migration 20123,3653,393
International migration 20133,0012,863
International migration 20143,1712,962
International migration 20153,2212,961
International migration 20163,3533,121
International migration 20172,4972,327
International migration 20182,4782,367
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 20111,197-368
Net migration 2012222-6,481
Net migration 2013392-3,160
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 201110.6433996111.0015191
Birth rate 201210.5122632610.71940585
Birth rate 201310.200131610.43036527
Birth rate 201410.5132989710.39273084
Birth rate 201510.5654329310.58822939
Birth rate 201610.5952469610.59118212
Birth rate 201710.550722210.4101334
Birth rate 201810.3954076710.26085924
Death rate 20118.1127646767.732133556
Death rate 20127.9698831457.653189803
Death rate 20138.437072797.979226095
Death rate 20147.7918969597.731405972
Death rate 20158.1347487487.878087104
Death rate 20168.0065432997.917204025
Death rate 20178.2641674478.571981652
Death rate 20188.4086675778.811116538
International migration rate 20112.2969920712.329929979
International migration rate 20122.4963843232.265114533
International migration rate 20132.2212172511.912155714
International migration rate 20142.3424445641.979122331
International migration rate 20152.3768165561.981904496
International migration rate 20162.4729126462.09527633
International migration rate 20171.8400023291.566805538
International migration rate 20181.8247375651.596808272
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 20110.890670395-0.245888796
Net migration rate 20120.164694597-4.326615763
Net migration rate 20130.29014234-2.110517658
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