kids encyclopedia robot

Fremont County, Idaho facts for kids

Kids Encyclopedia Facts
Quick facts for kids
Fremont County
Fremont County Courthouse
Fremont County Courthouse
Official seal of Fremont County
Map of Idaho highlighting Fremont County
Location within the U.S. state of Idaho
Map of the United States highlighting Idaho
Idaho's location within the U.S.
Country  United States
State  Idaho
Founded March 4, 1893
Named for John C. Frémont
Seat St. Anthony
Largest city St. Anthony
 • Total 1,896 sq mi (4,910 km2)
 • Land 1,864 sq mi (4,830 km2)
 • Water 32 sq mi (80 km2)  1.7%
 • Total 13,388 Increase
 • Density 7.1/sq mi (2.7/km2)
Time zone UTC−7 (Mountain)
 • Summer (DST) UTC−6 (MDT)
Congressional district 2nd

Fremont County is a county located in the U.S. state of Idaho. As of the 2010 census the county had a population of 13,242. The county seat and largest city is St. Anthony. The county was established in 1893, and was named for the explorer John C. Frémont. Fremont County is part of the Rexburg, Idaho micropolitan area, which is also included in the Idaho Falls metropolitan area.


Fremont County was established in 1893. It is named for John C. Frémont.

The county initially contained all of the northern portion of eastern Idaho north of Bonneville County. The counties of Jefferson and Madison were created from Fremont in 1913. Teton County was later created from Madison in 1915 and a portion of Butte was created from Jefferson in 1917. Clark County was also created from Fremont in 1919.

The first fur trapping operation by a United States fur company west of the Rocky Mountains occurred in 1810 when Andrew Henry established a fort in the fall of 1810 on Conant Creek in southern Fremont County. Henry later moved the fort to the south bank of the Henry's Fork of the Snake River between present-day settlements of Salem and Parker. The fort was abandoned some time after 1811.

At the time of early settlement, Fremont County was located on the northern edge of Oneida County. Mining, timber, and ranching operations commenced in the Island Park area prior to 1870. The establishment of Yellowstone National Park in 1872 also contributed to the eventual development of the Island Park area as a popular recreation area. Construction of the Egin Canal commenced in 1879 and farming settlement of the Egin area followed. In 1883, Parker was established and settlement commenced at Teton. These settlements became part of Bingham County when it was created in 1885. Settlement at St. Anthony started in 1888 while the Ashton area settlement of Marysville commenced settlement in 1889. At the 1890 Census, Bingham County enumerated 301 residents in the precincts of Teton and Henry's Lake.

Additional settlement occurred at Warm River in 1896, the Drummond area in 1900, and Newdale in 1914.

The Fremont County Courthouse in St. Anthony is on the National Register of Historic Places.


According to the U.S. Census Bureau, the county has a total area of 1,896 square miles (4,910 km2), of which 1,864 square miles (4,830 km2) is land and 32 square miles (83 km2) (1.7%) is water. The southern part of the county cover the northeast tip of the Snake River Basin, with the mountains of the continental divide forming its northern boundary. Montana lies to the north, and Wyoming to the east. A portion of Yellowstone National Park reaches into the county.

Adjacent Counties

Fremont County is one of the few US counties to border two counties of the same name in different states. Fremont County borders two such pairs of counties-- Madison County, Idaho and Madison County, Montana and Teton County, Idaho and Teton County, Wyoming.

Major highways

  • US 20.svg US 20
  • ID-47.svg SH-47
  • ID-87.svg SH-87

National protected areas


Historical population
Census Pop.
1900 12,821
1910 24,606 91.9%
1920 10,380 −57.8%
1930 9,924 −4.4%
1940 10,304 3.8%
1950 9,351 −9.2%
1960 8,679 −7.2%
1970 8,710 0.4%
1980 10,813 24.1%
1990 10,937 1.1%
2000 11,819 8.1%
2010 13,242 12.0%
2020 13,388 1.1%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2020 2020

2010 census

As of the 2010 United States Census, there were 13,242 people, 4,436 households, and 3,436 families living in the county. The population density was 7.1 inhabitants per square mile (2.7/km2). There were 8,531 housing units at an average density of 4.6 per square mile (1.8/km2). The racial makeup of the county was 89.5% white, 0.7% American Indian, 0.3% black or African American, 0.2% Asian, 0.1% Pacific islander, 7.6% from other races, and 1.5% from two or more races. Those of Hispanic or Latino origin made up 12.8% of the population. In terms of ancestry, 29.9% were English, 22.7% were German, 7.6% were Irish, 6.1% were American, 5.7% were Scottish, and 5.1% were Danish.

Of the 4,436 households, 38.7% had children under the age of 18 living with them, 65.9% were married couples living together, 7.2% had a female householder with no husband present, 22.5% were non-families, and 19.7% of all households were made up of individuals. The average household size was 2.88 and the average family size was 3.32. The median age was 33.5 years.

The median income for a household in the county was $42,523 and the median income for a family was $52,510. Males had a median income of $35,907 versus $24,450 for females. The per capita income for the county was $18,616. About 6.8% of families and 8.5% of the population were below the poverty line, including 9.3% of those under age 18 and 9.7% of those age 65 or over.



Unincorporated communities

Notable people

  • Brad Harris, television and movie actor
  • Sherman P. Lloyd, Utah State Senator and Member of the United States House of Representatives from Utah

See also

Kids robot.svg In Spanish: Condado de Fremont (Idaho) para niños

National Hispanic Heritage Month on Kiddle
Famous Hispanic actresses
Zoe Saldaña
Rosa Salazar
Sofía Vergara
Rita Hayworth
kids search engine
Fremont County, Idaho Facts for Kids. Kiddle Encyclopedia.