Time Zone: Mason County lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time.
The community of Shelton is the Seat for Mason County.
Mason County was founded in 1854 and was created by taking area from KingCounty.
From the Census Estimates for 2009, <1> Mason had a population of 58,016 people. This is an increase of 17.43% since the last Census (which gave a population of 49,405 people in 2000).
At the time of the 2000 Census, Mason represented 0.84% of the total population of Washington, making it the state's 20th most populous county (out of 39 counties).
The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.
Year | Population | Change Since 2000 | Year-to-Year Change |
2010 | 60,699 | +22.86% | +4.62% since 2009 |
2009 | 58,016 | +17.43% | +0.52% since 2008 |
2008 | 57,717 | +16.82% | +1.57% since 2007 |
2007 | 56,823 | +15.01% | |
--- | | | 2000 | 49,405 | The Last Census |
More information can be found on the Mason County Census Page for Mason County. .
Websites for Mason County
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