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The Commemorative
Quarter for
The Commemorative Quarter for Montana

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

The community of Billings is the Seat for Yellowstone County.

Yellowstone County was founded in 1893 and was created by taking area from CusterCounty.

From the Census Estimates for 2009, <1> Yellowstone had a population of 144,797 people. This is an increase of 11.94% since the last Census (which gave a population of 129,352 people in 2000).

At the time of the 2000 Census, Yellowstone represented 14.34% of the total population of Montana, making it the state's most populous county (out of 56 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
2010147,972+14.39%+2.19% since 2009
2009144,797+11.94%+1.54% since 2008
2008142,602+10.24%+1.82% since 2007
2000129,352The Last Census

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


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

Community 2009
(2009vs. 2000)
Billings   105,84589,84717.81% increase  
Laurel   6,7506,2557.91% increase  
Broadview   1531502% increase  

Websites for Yellowstone County

Official Website:   www.co.yellowstone.mt.us/

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