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The Commemorative
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The Commemorative Quarter for Colorado

Time Zone: Summit County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time.

The community of Breckenridge is the Seat for Summit County.

Summit County is one of the original counties of Colorado and was founded November 1, 1861.

From the Census Estimates for 2009, <1> Summit had a population of 27,239 people. This is an increase of 15.67% since the last Census (which gave a population of 23,548 people in 2000).

At the time of the 2000 Census, Summit represented 0.55% of the total population of Colorado, making it the state's 20th most populous county (out of 64 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
201027,994+18.88%+2.77% since 2009
200927,239+15.67%+1.93% since 2008
200826,724+13.49%+1.87% since 2007
200023,548The Last Census

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


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

Community 2009
(2009vs. 2000)
Silverthorne   4,0613,19627.07% increase  
Breckenridge   3,5332,40846.72% increase  
Frisco   2,7442,44312.32% increase  
Blue River   99768545.55% increase  
Dillon   8108021% increase  

Websites for Summit County

Official Website:   www.co.summit.co.us/

If you know of a history or genealogy society whose interest includes Summit 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.

Other Roadside Stops ...

About Colorado

Index of Cities, Towns and Villages for Colorado

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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