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Time Zone: Suffolk County lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time.

The community of Riverhead is the Seat for Suffolk County.

Suffolk County is one of the original counties of New York and was founded in 1683.

From the Census Estimates for 2009, <1> Suffolk had a population of 1,518,475 people. This is an increase of 6.98% since the last Census (which gave a population of 1,419,369 people in 2000).

At the time of the 2000 Census, Suffolk represented 7.48% of the total population of New York, making it the state's 4th most populous county (out of 62 counties).

The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.

YearPopulationChange
Since 2000		Year-to-Year Change
20101,493,350+5.21%-1.65% since 2009
20091,518,475+6.98%+0.33% since 2008
20081,513,435+6.63%+0.11% since 2007
20071,511,732+6.51% 
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20001,419,369The Last Census

More information can be found on the Suffolk County Census Page for Suffolk County.

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Below are some of the communities located in Suffolk County (for more communities, please visit our Nearby Page for Suffolk County):

Community 2009
Population		2000
Population		Change
(2009vs. 2000)
Brookhaven   490,416448,2489.41% increase  
Islip   337,565322,6124.63% increase  
Babylon   221,044211,7924.37% increase  
Huntington   202,197195,2893.54% increase  
Smithtown   121,817115,7155.27% increase  

Websites for Suffolk County

Official Website:   www.co.suffolk.ny.us/

If you know of a history or genealogy society whose interest includes Suffolk County, would you please send us the URL for their website? We would like to add their link to our Gazetteer. To contact us, please visit our Feedback Page.

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About New York

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Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2000 Census and the next count will be for the 2010 Census.

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<2>All Quarter-dollar coin images from the United States Mint.

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