Time Zone: Jefferson County lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time.
The community of Madras is the Seat for Jefferson County.
Jefferson County was founded in 1914 and was created by taking area from CrookCounty.
From the Census Estimates for 2009, <1> Jefferson had a population of 19,959 people. This is an increase of 5% since the last Census (which gave a population of 19,009 people in 2000).
At the time of the 2000 Census, Jefferson represented 0.56% of the total population of Oregon, making it the state's 27th most populous county (out of 36 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 | 21,720 | +14.26% | +8.82% since 2009 |
2009 | 19,959 | +5% | -2.04% since 2008 |
2008 | 20,375 | +7.19% | -0.71% since 2007 |
2007 | 20,520 | +7.95% | |
--- | | | 2000 | 19,009 | The Last Census |
More information can be found on the Jefferson County Census Page for Jefferson County. .
Below are some of the communities located in Jefferson County (for more communities, please visit our Nearby Page for Jefferson County):
Community | 2009 Population | 2000 Population | Change (2009vs. 2000) |
Madras | 5,820 | 5,078 | 14.61% increase |
Culver | 1,082 | 802 | 34.91% increase |
Metolius | 753 | 635 | 18.58% increase |
Websites for Jefferson County
If you know of a history or genealogy society whose interest includes Jefferson 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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