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The Commemorative
Quarter for
The Commemorative Quarter for Minnesota

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

The community of Rochester is the Seat for Olmsted County.

Olmsted County was founded in 1855. Olmsted was created by taking area from Fillmore, and Counties.

From the Census Estimates for 2009, <1> Olmsted had a population of 143,962 people. This is an increase of 15.84% since the last Census (which gave a population of 124,277 people in 2000).

At the time of the 2000 Census, Olmsted represented 2.53% of the total population of Minnesota, making it the state's 8th most populous county (out of 87 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
2010144,248+16.07%+0.2% since 2009
2009143,962+15.84%+1.48% since 2008
2008141,857+14.15%+1.62% since 2007
2000124,277The Last Census

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


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

Community 2009
(2009vs. 2000)
Rochester   103,48685,80620.6% increase  
Stewartville   5,6255,4113.95% increase  
Byron   4,6023,50031.49% increase  
Eyota   1,7981,6449.37% increase  
Oronoco   97988310.87% increase  

Websites for Olmsted County

Official Website:   www.olmstedcounty.com/

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