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The Commemorative Quarter for Iowa

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

The community of Orange City is the Seat for Sioux County.

Sioux County was founded January 15, 1851 and was created by taking area from PlymouthCounty.

From the Census Estimates for 2009, <1> Sioux had a population of 32,244 people. This is an increase of 2.07% since the last Census (which gave a population of 31,589 people in 2000).

At the time of the 2000 Census, Sioux represented 1.08% of the total population of Iowa, making it the state's 22nd most populous county (out of 99 counties).

The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.

YearPopulationChange
Since 2000
Year-to-Year Change
201033,704+6.7%+4.53% since 2009
200932,244+2.07%+0.56% since 2008
200832,064+1.5%+0.15% since 2007
200732,017+1.35% 
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200031,589The Last Census

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

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

Community 2009
Population
2000
Population
Change
(2009vs. 2000)
Sioux Center   6,7046,00211.7% increase  
Orange City   5,8145,5824.16% increase  
Rock Valley   3,1592,70216.91% increase  
Hawarden   2,3672,4784.48% decrease  
Hull   2,0311,9603.62% increase  

Websites for Sioux County

Official Website:   www.siouxcounty.org/

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