Learn About
The Commemorative
Quarter for
The Commemorative Quarter for Oklahoma

Time Zone: Delaware County lies in the Central Time Zone (CST/CDT) and observes daylight saving time.

The community of Jay is the Seat for Delaware County.

Delaware County was founded in 1907.

From the Census Estimates for 2009, <1> Delaware had a population of 40,555 people. This is an increase of 9.38% since the last Census (which gave a population of 37,077 people in 2000).

At the time of the 2000 Census, Delaware represented 1.07% of the total population of Oklahoma, making it the state's 25th most populous county (out of 77 counties).

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

Since 2000
Year-to-Year Change
201041,487+11.89%+2.3% since 2009
200940,555+9.38%+0.23% since 2008
200840,463+9.13%-0.12% since 2007
200037,077The Last Census

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


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

Community 2009
(2009vs. 2000)
Grove   6,3775,13124.28% increase  
Jay   2,9662,48219.5% increase  
West Siloam Springs   9348776.5% increase  
Colcord   8738196.59% increase  
Kansas   7426858.32% increase  

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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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