Time Zone: Onondaga County lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time.
The community of Syracuse is the Seat for Onondaga County.
Onondaga County was founded in 1792 and was created by taking area from HerkimerCounty.
From the Census Estimates for 2009, <1> Onondaga had a population of 454,753 people. This is a decrease of 0.78% since the last Census (which gave a population of 458,336 people in 2000).
At the time of the 2000 Census, Onondaga represented 2.42% of the total population of New York, making it the state's 10th 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.
Year | Population | Change Since 2000 | Year-to-Year Change |
2010 | 467,026 | +1.9% | +2.7% since 2009 |
2009 | 454,753 | -0.78% | +0.3% since 2008 |
2008 | 453,373 | -1.08% | +0.09% since 2007 |
2007 | 452,944 | -1.18% | |
--- | | | 2000 | 458,336 | The Last Census |
More information can be found on the Onondaga County Census Page for Onondaga County. .
Below are some of the communities located in Onondaga County (for more communities, please visit our Nearby Page for Onondaga County):
Community | 2009 Population | 2000 Population | Change (2009vs. 2000) |
Syracuse | 138,560 | 147,306 | 5.94% decrease |
Clay | 58,785 | 58,805 | |
Salina | 32,489 | 33,290 | 2.41% decrease |
Manlius | 32,299 | 31,872 | 1.34% increase |
Cicero | 30,314 | 27,982 | 8.33% increase |
Websites for Onondaga County
If you know of a history or genealogy society whose interest includes Onondaga 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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