Time Zone: Warren County lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time.
The community of Warren is the Seat for Warren County.
Warren County was founded March 12, 1800. Warren was created by taking area from Allegheny and Counties.
From the Census Estimates for 2009, <1> Warren had a population of 40,638 people. This is a decrease of 7.35% since the last Census (which gave a population of 43,863 people in 2000).
At the time of the 2000 Census, Warren represented 0.36% of the total population of Pennsylvania, making it the state's 50th most populous county (out of 67 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 | 41,815 | -4.67% | +2.9% since 2009 |
2009 | 40,638 | -7.35% | -0.34% since 2008 |
2008 | 40,776 | -7.04% | -0.55% since 2007 |
2007 | 41,003 | -6.52% | |
--- | | | 2000 | 43,863 | The Last Census |
More information can be found on the Warren County Census Page for Warren County. .
Below are some of the communities located in Warren County (for more communities, please visit our Nearby Page for Warren County):
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