Twin Falls County, Idaho

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Twin Falls County, Idaho
Seal of Twin Falls County, Idaho
Seal
Map of Idaho highlighting Twin Falls County
Location in the state of Idaho
Map of the United States highlighting Idaho
Idaho's location in the U.S.
Founded February 21, 1907
Named for Snake River waterfall
Seat Twin Falls
Largest city Twin Falls
Area
 • Total 1,928 sq mi (4,993 km2)
 • Land 1,921 sq mi (4,975 km2)
 • Water 7.1 sq mi (18 km2), 0.4%
Population
 • (2010) 77,230
 • Density 40/sq mi (15/km²)
Congressional district 2nd
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 2010 Census, the county had a population of 77,230.[1] The county seat and largest city is Twin Falls.[2]

Twin Falls County is part of the Twin Falls, ID Micropolitan 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.[3]

Geography[edit]

According to the U.S. 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.[4]

Adjacent counties[edit]

Major highways[edit]

National protected areas[edit]

Demographics[edit]

Historical population
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%
Est. 2013 79,957 3.5%
U.S. Decennial Census[5]
1790-1960[6] 1900-1990[7]
1990-2000[8] 2010-2013[1]

As of the census[9] 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.

Communities[edit]

See also[edit]

References[edit]

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved July 1, 2014. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ Idaho.gov - Twin Falls County accessed 2009-05-29
  4. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23. 
  5. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 1, 2014. 
  6. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 1, 2014. 
  7. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 1, 2014. 
  8. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. Retrieved July 1, 2014. 
  9. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 

External links[edit]

Coordinates: 42°21′N 114°40′W / 42.35°N 114.66°W / 42.35; -114.66