Jefferson County , Idaho

Jefferson County: County in Idaho, United States

Jefferson County locator map
Location of Jefferson County on Idaho map.

About

Jefferson County is a county located in the U.S. state of Idaho. As of the 2010 census, the population was 26,140 and a population density of 9 people per km². After 9 years in 2019 county had an estimated population of 2,019 inhabitants. Its county seat is Rigby. The county was created 108 years ago in 1913.

Entering Grant  Idaho image
Entering Grant Idaho
Entering Grant  Idaho image

Geography

Jefferson County is located at 43°49'13"N 112°18'41"W (43.8201400, -112.3112800). It has 6 neighbors: Bingham County, Bonneville County, Butte County, Clark County, Fremont County and Madison County.

Jefferson County map

The largest city of Jefferson County is Rigby with a population of 4,292. Other cities include, Menan population 804, Ririe population 681, Roberts population 637 and Lewisville population 520. See all Jefferson County cities & populated places.

Weather

Jefferson County forecast: Mostly clear, with a low around 33. East wind around 10 mph. more

Jefferson County Quick Facts

Population : 29,871 (2019)
Country : United States of America
State : Idaho (United States)
Different from : Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson Parish, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County
Twitter username : jeffersoncoid
Area : 2863 km2
Water as percent of area : 1.1%
Land as percent of area : 98.9%
Named for : Thomas Jefferson
Capital : Rigby
Establishment : February 02, 1913
Time Zone : America/Boise
Local time : 07:37:12 (22nd September 2021)
Density : 10 Pop. per km² as of 2019
Population growth : 12.49% (2010-2019)
Weather : 33℉ Mostly Clear 7-days weather

Jefferson County has 6 neighbours.

  • Rigby

Demographics

The population of Jefferson County increased by 12.49% in 9 years.

Year Population % Change Method
2010 26,140 - census
2011 26,313 0.66% estimation process
2012 26,641 1.23% estimation process
2013 26,804 0.61% estimation process
2014 26,944 0.52% estimation process
2015 27,127 0.67% estimation process
2016 27,830 2.53% estimation process
2017 28,439 2.14% estimation process
2018 29,405 3.29% estimation process
2019 29,871 1.56% estimation process

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Other places with the same name (25)

Jefferson County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Jefferson County.

City Name Population Title
Rigby 4,292 City in Jefferson County, Idaho, United States
Menan 804 City in Jefferson County, Idaho, United States
Ririe 681 City in Idaho, United States
Roberts 637 City in Jefferson County, Idaho, United States
Lewisville 520 City in Jefferson County, Idaho, United States
Mud Lake 419 City in Jefferson County, Idaho, United States
Hamer 104 City in Jefferson County, Idaho, United States

Idaho Other Counties (more counties)

County Name Population Title
Ada County 481,587 County in Idaho, United States
Canyon County 229,849 County in Idaho, United States
Boise 228,959 City in and state capital of Idaho, United States
Kootenai County 165,697 County in Idaho, United States
Bonneville County 119,062 County in Idaho, United States
Meridian 114,161 City in Ada County, Idaho, United States
Nampa 99,277 City in Canyon County, Idaho, United States
Bannock County 87,808 County in Idaho, United States
Twin Falls County 86,878 County in Idaho, United States
Idaho Falls 62,888 City in and the county seat of Bonneville County, Idaho, United States
Caldwell 58,481 City in and county seat of Canyon County, Idaho, United States
Pocatello 56,637 City in Idaho
Coeur d'Alene 52,414 City in Idaho, United States
Twin Falls 50,197 City in Twin Falls County, Idaho, United States
Bingham County 46,811 County in Idaho, United States
Bonner County 45,739 County in Idaho, United States