Learn About
The Commemorative
Quarter for
The Commemorative Quarter for Maryland

Time Zone: Saint Mary's County lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time.

The community of Leonardtown is the Seat for Saint Mary's County.

Saint Mary's County was founded in 1637.

From the Census Estimates for 2009, <1> Saint Mary's had a population of 102,999 people. This is an increase of 19.47% since the last Census (which gave a population of 86,211 people in 2000).

At the time of the 2000 Census, Saint Mary's represented 1.63% of the total population of Maryland, making it the state's 11th most populous county (out of 24 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
2010105,151+21.97%+2.09% since 2009
2009102,999+19.47%+1.31% since 2008
2008101,664+17.92%+1.26% since 2007
200086,211The Last Census

More information can be found on the Saint Mary's County Census Page for Saint Mary's County.


Websites for Saint Mary's County

Official Website:   www.co.saint-marys.md.us/

If you know of a history or genealogy society whose interest includes Saint Mary's 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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