Jefferson County, Idaho Article Index for
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Jefferson County, Idaho
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  State Idaho
  Seal Jefferson County, Idaho sealpng <!-- image of county seal -->
  Founded Year 1913 <!-- if you include a reference, the year's wikilink won't work so add the to the year -->
  Founded Date February 18 <!-- optional, syntax is: February 1 -->
  Seat Wl Rigby <!-- county seat the WikiLink is created for you: "City" results in " City " -->
  Largest City Wl <!-- largest city the WikiLink is created for you: "City" results in " City " -->
  Area Mi 1106
  Area Km 2863
  Area Land Mi 1096
  Area Land Km 2836
  Area Water Mi 10
  Area Water Km 27
  Area Percentage 095%
  Census Yr 2000
  Pop 19,155
  UTC Offset <!-- example: time zone = Central UTC offset = -6 DST offset = -5 -->
  Web wwwcojeffersonidus
  Named For United States President Thomas Jefferson


Jefferson County is a is Rigby 6 .

Jefferson County is part of the Idaho Falls, ID Metropolitan Statistical Area .


GEOGRAPHY

According to the U.S. Census Bureau , the county has a total area of 2,863 Km&2 (1,106 Mi&2 ). 2,836 km&2 (1,095 mi&2) of it is land and 27 km&2 (10 mi&2) of it (0.95%) is water.


Adjacent Counties



DEMOGRAPHICS

As of the Census 2 of 2000, there were 19,155 people, 5,901 households, and 4,880 families residing in the county. The Population Density was 7/km&2 (18/mi&2). There were 6,287 housing units at an average density of 2/km&2 (6/mi&2). The racial makeup of the county was 90.87% White , 0.28% Black or African American , 0.46% Native American , 0.23% Asian , 0.08% Pacific Islander , 6.76% from Other Races , and 1.33% from two or more races. 9.96% of the population were Hispanic or Latino of any race.

There were 5,901 households out of which 47.60% had children under the age of 18 living with them, 72.60% were Married Couples living together, 6.80% had a female householder with no husband present, and 17.30% were non-families. 15.20% of all households were made up of individuals and 7.40% had someone living alone who was 65 years of age or older. The average household size was 3.23 and the average family size was 3.62.

In the county the population was spread out with 36.30% under the age of 18, 9.60% from 18 to 24, 25.50% from 25 to 44, 19.30% from 45 to 64, and 9.30% who were 65 years of age or older. The median age was 29 years. For every 100 females there were 102.20 males. For every 100 females age 18 and over, there were 101.00 males.

The median income for a household in the county was $37,737, and the median income for a family was $41,530. Males had a median income of $31,298 versus $19,755 for females. The Per Capita Income for the county was $13,838. About 8.00% of families and 10.40% of the population were below the Poverty Line , including 13.00% of those under age 18 and 8.70% of those age 65 or over.


CITIES AND TOWNS