| Twin Falls County, Idaho | ||
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Location in the state of Idaho |
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Idaho's location in the U.S. |
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| Founded | February 21, 1907 | |
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| Named for | Snake River waterfall | |
| Seat | Twin Falls | |
| Largest city | Twin Falls | |
| Area - Total - Land - Water |
1,928.47 sq mi (4,995 km²) 1,925.03 sq mi (4,986 km²) 3.44 sq mi (9 km²), 0.18% |
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| Population - (2000) - Density |
64,284 33.3/sq mi (12.9/km²) |
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| Time zone | Mountain: UTC-7/-6 | |
| Website | www.twinfallscounty.org | |
Twin Falls County is a county in the south central part of the U.S. state of Idaho. As of the 2000 Census, the county had a population of 64,284 (2008 estimate: 74,284).[1] The county seat and largest city is Twin Falls.[2]
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.
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.[3]
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.
Twin Falls County is part of the Twin Falls Micropolitan Statistical Area.
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According to the 2000 census, the county has a total area of 1,928.47 square miles (4,994.7 km2), of which 1,925.03 square miles (4,985.8 km2) (or 99.82%) is land and 3.44 square miles (8.9 km2) (or 0.18%) is water.[4]
| Historical populations | |||
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| Census | Pop. | %± | |
| 1910 | 13,543 |
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| 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% | |
| Est. 2008 | 74,284 | 15.6% | |
| sources:[1][5] | |||
As of the census[6] of 2000, there were 64,284 people, 23,853 households, and 16,959 families residing in the county. The population density was 33 people per square mile (13/km²). There were 25,595 housing units at an average density of 13 per square mile (5/km²). The racial makeup of the county was 92.47% White, 0.19% Black or African American, 0.71% Native American, 0.76% Asian, 0.08% Pacific Islander, 3.77% from other races, and 2.02% from two or more races. 9.37% of the population were Hispanic or Latino of any race. 17.9% were of German, 17.7% English, 10.9% American and 7.3% Irish ancestry according to Census 2000.
There were 23,853 households out of which 34.70% had children under the age of 18 living with them, 58.00% were married couples living together, 9.20% had a female householder with no husband present, and 28.90% were non-families. 23.60% of all households were made up of individuals and 10.40% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.13.
In the county the population was spread out with 27.90% under the age of 18, 10.40% from 18 to 24, 26.00% from 25 to 44, 21.50% from 45 to 64, and 14.30% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 96.50 males. For every 100 females age 18 and over, there were 93.70 males.
The median income for a household in the county was $34,506, and the median income for a family was $39,886. Males had a median income of $30,058 versus $20,825 for females. The per capita income for the county was $16,678. About 9.10% of families and 12.70% of the population were below the poverty line, including 16.00% of those under age 18 and 9.30% of those age 65 or over.
| Elmore County | Gooding County | Jerome County | ||
| Owyhee County | Cassia County | |||
| Twin Falls County, Idaho | ||||
| Elko County, Nevada |
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