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Oneida County, Idaho facts for kids

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Oneida County
Oneida County Courthouse in Malad City
Oneida County Courthouse in Malad City
Official seal of Oneida County
Map of Idaho highlighting Oneida 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 January 22, 1864
Named for Oneida Lake, New York
Seat Malad City
Largest city Malad City
 • Total 1,202 sq mi (3,110 km2)
 • Land 1,200 sq mi (3,000 km2)
 • Water 1.5 sq mi (4 km2)  0.1%
 • Total 4,564 Increase
 • Density 3.8/sq mi (1.5/km2)
Time zone UTC−7 (Mountain)
 • Summer (DST) UTC−6 (MDT)
Congressional district 2nd

Oneida County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 4,286. The county seat and largest city is Malad City. Most of the county's population lives in Malad City and the surrounding Malad Valley.


The county is named for Oneida Lake, New York, the area from which most of the early settlers had emigrated.

Oneida County was organized on January 22, 1864, as the second county organized under Idaho Territory. Its original boundaries were set at the 113th meridian, the Snake River, the 112th Meridian north of the Snake River, the Rocky Mountains, and the southern boundary of Idaho Territory. While older and more populous settlements existed within the boundaries of the new county, the original county seat was established at Soda Springs in present-day Caribou County because those older settlements were believed to be in Utah Territory until the southern boundary of Idaho Territory was surveyed in 1870. The county seat was moved to Malad City in 1866 because of its population growth and location on the freight road and stagecoach line between Corinne, Utah, and the mines in Butte, Montana.

Once among Idaho's largest counties in area and population, a portion was stricken to Dakota Territory in 1864 and additional territory was included in Wyoming Territory at its formation in 1868. Even after Bear Lake County was formed from southeastern Oneida County in 1875, Oneida County managed to be the most populous of Idaho's counties at the 1880 census with a population of 6,964. The county's area was further reduced with the establishment of Bingham County in 1885. A portion was taken to form Franklin and Power counties in 1913.


According to the U.S. Census Bureau, the county has a total area of 1,202 square miles (3,110 km2), of which 1,200 square miles (3,100 km2) is land and 1.5 square miles (3.9 km2) (0.1%) is water.

Elkhorn Peak is the county's highest point, at 9,095 feet (2,772 m) above sea level. Alternating valleys and ridges of mountains or hills typify the topography, with grassland and sagebrush covering most areas. The Curlew National Grassland lies within the county.

Adjacent counties

Major highways

  • I-15.svg Interstate 15
  • I-84.svg Interstate 84
  • ID-36.svg SH-36
  • ID-38.svg SH-38

National protected areas

  • Caribou National Forest (part)
  • Curlew National Grassland (part)
  • Sawtooth National Forest (part)


Historical population
Census Pop.
1870 1,922
1880 6,964 262.3%
1890 6,819 −2.1%
1900 8,933 31.0%
1910 15,170 69.8%
1920 6,723 −55.7%
1930 5,870 −12.7%
1940 5,417 −7.7%
1950 4,387 −19.0%
1960 3,603 −17.9%
1970 2,864 −20.5%
1980 3,258 13.8%
1990 3,492 7.2%
2000 4,125 18.1%
2010 4,286 3.9%
2020 4,564 6.5%
U.S. Decennial Census
1790–1960 1900–1990
1990–2000 2010–2020 2020

2010 census

As of the 2010 United States Census, there were 4,286 people, 1,545 households, and 1,161 families living in the county. The population density was 3.6 inhabitants per square mile (1.4/km2). There were 1,906 housing units at an average density of 1.6 per square mile (0.62/km2). The racial makeup of the county was 96.7% white, 0.5% Asian, 0.5% American Indian, 0.2% black or African American, 1.1% from other races, and 1.0% from two or more races. Those of Hispanic or Latino origin made up 2.9% of the population. In terms of ancestry, 38.3% were English, 15.1% were Welsh, 12.8% were "American", 10.7% were German, 5.8% were Swedish, and 5.1% were Danish.

Of the 1,545 households, 36.4% had children under the age of 18 living with them, 65.9% were married couples living together, 6.1% had a female householder with no husband present, 24.9% were non-families, and 22.5% of all households were made up of individuals. The average household size was 2.74 and the average family size was 3.24. The median age was 39.1 years.

The median income for a household in the county was $44,599 and the median income for a family was $51,371. Males had a median income of $43,362 versus $24,821 for females. The per capita income for the county was $17,950. About 11.9% of families and 13.4% of the population were below the poverty line, including 14.2% of those under age 18 and 13.0% of those age 65 or over.

Arts and culture

Museums and other points of interest

Oneida County contains seven buildings listed on the National Register of Historic Places:



Unincorporated communities

Notable people

See also

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

Black History Month on Kiddle
Contemporary African-American Artists:
Janet Taylor Pickett
Synthia Saint James
Howardena Pindell
Faith Ringgold
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