Twin Falls County, Idaho facts for kids
Quick facts for kids
Twin Falls County
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Location within the U.S. state of Idaho
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 Idaho's location within the U.S. |
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| Country |  United States |
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| State |  Idaho |
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| Founded | February 21, 1907 | |
| Named for | Snake River waterfall | |
| Seat | Twin Falls | |
| Largest city | Twin Falls | |
| Area | ||
| • Total | 1,928 sq mi (4,990 km2) | |
| • Land | 1,921 sq mi (4,980 km2) | |
| • Water | 7.1 sq mi (18 km2) 0.4% | |
| Population
(2020)
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| • Total | 90,046 | |
| • Estimate
(2022)
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93,696  |
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| • Density | 47/sq mi (18/km2) | |
| Time zone | UTC−7 (Mountain) | |
| • Summer (DST) | UTC−6 (MDT) | |
| Congressional district | 2nd | |
Twin Falls County is a county in the south central part of the U.S. state of Idaho. As of the 2020 census, the population was 90,046, making it the fifth-most populous county in Idaho. The county seat and largest city is Twin Falls. Twin Falls County is part of the Twin Falls, ID Twin Falls Metropolitan Statistical Area.
Prior to the 1860s, the Twin Falls County area was an unorganized part of Shoshone lands, then as part of the Oregon Country. The area was first organized as part of the original Owyhee County in 1864 as part of Idaho Territory. In 1879 it was partitioned away from Owyhee County to form part of Cassia County. The county is named for a split waterfall on the Snake River of the same name. The Snake River is the county's northern boundary.
Even after Idaho became a state in 1890, the Twin Falls area was very sparsely populated and without significant settlements. That changed after the city of Twin Falls was founded in 1904, and Milner Dam was completed in 1905. Most of the county's other towns were established during this period as well. In response to local government needs for these new communities, which were as much as 80 miles (130 km) away from Cassia County's seat at Albion, Twin Falls County was created by the Idaho Legislature on February 21, 1907.
Contents
Geography
According to the United States Census Bureau, the county has a total area of 1,928 square miles (4,990 km2), of which 1,921 square miles (4,980 km2) is land and 7.1 square miles (18 km2) (0.4%) is water.
Adjacent counties
- Gooding County - north
- Jerome County - northeast
- Cassia County - east
- Elko County, Nevada - south/Pacific Time Border
- Owyhee County - west
- Elmore County - northwest
Major highways
US 30
US 93
SH-50
SH-74
National protected areas
- Hagerman Fossil Beds National Monument
- Sawtooth National Forest (part)
Demographics
| Historical population | |||
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| Census | Pop. | %± | |
| 1910 | 13,543 | — | |
| 1920 | 28,398 | 109.7% | |
| 1930 | 29,828 | 5.0% | |
| 1940 | 36,403 | 22.0% | |
| 1950 | 40,979 | 12.6% | |
| 1960 | 41,842 | 2.1% | |
| 1970 | 41,807 | −0.1% | |
| 1980 | 52,927 | 26.6% | |
| 1990 | 53,580 | 1.2% | |
| 2000 | 64,284 | 20.0% | |
| 2010 | 77,230 | 20.1% | |
| 2020 | 90,046 | 16.6% | |
| 2023 (est.) | 95,156 | 23.2% | |
| U.S. Decennial Census 1790–1960, 1900–1990, 1990–2000, 2010–2020, |
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2010 census
As of the 2010 census, there were 77,230 people, 28,760 households, and 19,954 families living in the county. The population density was 40.2 inhabitants per square mile (15.5/km2). There were 31,072 housing units at an average density of 16.2 per square mile (6.3/km2). The racial makeup of the county was 88.9% white, 1.2% Asian, 0.8% American Indian, 0.4% black or African American, 0.1% Pacific islander, 6.3% from other races, and 2.3% from two or more races. Those of Hispanic or Latino origin made up 13.7% of the population. In terms of ancestry, 20.2% were German, 14.5% were English, 10.8% were Irish, and 7.0% were American.
Of the 28,760 households, 35.4% had children under the age of 18 living with them, 54.1% were married couples living together, 10.5% had a female householder with no husband present, 30.6% were non-families, and 24.3% of all households were made up of individuals. The average household size was 2.65 and the average family size was 3.16. The median age was 34.4 years.
The median income for a household in the county was $42,455 and the median income for a family was $49,188. Males had a median income of $35,777 versus $26,257 for females. The per capita income for the county was $19,892. About 10.6% of families and 13.0% of the population were below the poverty line, including 16.9% of those under age 18 and 10.7% of those age 65 or over.
Communities
Cities
Unincorporated communities
- Amsterdam
- Artesian City
- Caldron Linn
- Clover
- Curry
- Deep Creek
- Fairview
- Godwin
- Knull
- Peavey
- Milner Dam (Extends into) Cassia County and Jerome County
- Rock Creek
- Rogerson
Education
School districts include:
- Bliss Joint School District 234
- Buhl Joint School District 412
- Cassia County Joint School District 151
- Castleford School District 417
- Filer School District 413
- Hagerman Joint School District 233
- Hansen School District 415
- Kimberly School District 414
- Murtaugh Joint School District 418
- Three Creek Joint Elementary School District 416
- Twin Falls School District 411
The county is in the catchment area, and the taxation zone, for College of Southern Idaho.
See also
In Spanish: Condado de Twin Falls (Idaho) para niños
