Learn About
The Commemorative
Quarter for
Idaho
 
The Commemorative Quarter for Idaho

Time Zone: Jefferson County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time.

The community of Rigby is the Seat for Jefferson County.

Jefferson County was founded in 1913 and was created by taking area from FremontCounty.

From the Census Estimates for 2009, <1> Jefferson had a population of 24,802 people. This is an increase of 29.48% since the last Census (which gave a population of 19,155 people in 2000).

At the time of the 2000 Census, Jefferson represented 1.48% of the total population of Idaho, making it the state's 16th most populous county (out of 44 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
201026,140+36.47%+5.39% since 2009
200924,802+29.48%+3.91% since 2008
200823,869+24.61%+4.84% since 2007
200722,766+18.85% 
---   
200019,155The 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)
Rigby   3,5312,99817.78% increase  
Menan   7467075.52% increase  
Roberts   6646472.63% increase  
Lewisville   54446716.49% increase  
Mud Lake   29727010% increase  

Websites for Jefferson County

Official Website:   www.co.jefferson.id.us/

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.

Other Roadside Stops ...

About Idaho

Communities in Idaho


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.

- Return to Citation

<2>All Quarter-dollar coin images from the United States Mint.

- Return to Citation