Nez Perce County, Idaho

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Nez Perce County, Idaho
Seal of Nez Perce County, Idaho
Map of Idaho highlighting Nez Perce County
Location in the state of Idaho
Map of USA ID
Idaho's location in the U.S.
Founded February 4, 1864
Named for The Nez Percé tribe
of Native Americans
Seat Lewiston
Largest city Lewiston
 - Total
 - Land
 - Water

856.36 sq mi (2,218 km²)
849.08 sq mi (2,199 km²)
7.28 sq mi (19 km²), 0.85%
 - (2010)
 - Density

46/sq mi (19/km²)
Time zone Pacific: UTC-8/-7

Nez Perce County [Eng. pron. Nezz Purse] is a county located in the U.S. state of Idaho. The population was 39,265 at the 2010 Census.[1] The county seat is Lewiston.[2] The county is named for the Nez Percé tribe.

Nez Perce County is part of the Lewiston, ID-WA Metropolitan Statistical Area, which includes the entire county and all of Asotin County, Washington.


Nez Perce County was originally organized in 1861, when the area was part of Washington Territory. It was reorganized in 1864 by the Idaho Territorial Legislature and was later subdivided into new counties. Rapid migration to the Palouse in the 1880s led to the formation of Latah County in 1888. Isolated from its county seat of Wallace in the Silver Valley, the southern portion of Shoshone County was annexed by Nez Perce County in 1904, then became Clearwater County in 1911.[3] Lewis County was also formed from Nez Perce County in 1911.


According to the 2000 census, the county has a total area of 856.36 square miles (2,218.0 km2), of which 849.08 square miles (2,199.1 km2) (or 99.15%) is land and 7.28 square miles (18.9 km2) (or 0.85%) is water.[4]

Nez Perce County has two rivers, the Clearwater and the Snake, which meet in Lewiston and then flow west. The Clearwater flows from the east and the Snake from the south, creating the state border with Washington (and further upstream, Oregon). The lowest point in the state of Idaho is located on the Snake River in Lewiston in Nez Perce County, where it flows out of Idaho and into Washington. North of Lewiston, Idaho's western border is a political line.

The northern portion of the county is part of the Palouse, a wide and rolling agricultural region of the middle Columbia basin.

Adjacent countiesEdit

Nez Perce County


National protected areasEdit


Government and politicsEdit

Nez Perce county is a strongly Republican county. In 2004 Republican George W. Bush defeated Democrat John Kerry 62% to 36%. In 2008 Republican John McCain defeated Democrat Barack Obama by a slightly smaller margin of 58% to 39%.[5]


Historical populations
Census Pop.
1870 1,607
1880 3,965 146.7%
1890 2,847 −28.2%
1900 13,748 382.9%
1910 24,860 80.8%
1920 15,253 −38.6%
1930 17,591 15.3%
1940 18,873 7.3%
1950 22,568 19.6%
1960 27,066 19.9%
1970 30,276 11.9%
1980 33,220 9.7%
1990 33,754 1.6%
2000 37,410 10.8%
2010 39,265 5.0%

As of the census[7] of 2000, there were 37,410 people, 15,286 households, and 10,149 families residing in the county. The population density was 44 people per square mile (17/km²). There were 16,203 housing units at an average density of 19 per square mile (7/km²). The racial makeup of the county was 91.58% White, 0.28% Black or African American, 5.31% Native American, 0.65% Asian, 0.07% Pacific Islander, 0.50% from other races, and 1.60% from two or more races. 1.93% of the population were Hispanic or Latino of any race. 25.1% were of German, 11.3% English, 11.0% American, 8.9% Irish and 5.6% Norwegian ancestry according to Census 2000.

There were 15,286 households out of which 29.00% had children under the age of 18 living with them, 52.80% were married couples living together, 9.30% had a female householder with no husband present, and 33.60% were non-families. 26.70% of all households were made up of individuals and 11.30% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 2.90.

In the county the population was spread out with 23.80% under the age of 18, 10.00% from 18 to 24, 26.70% from 25 to 44, 23.00% from 45 to 64, and 16.50% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 96.70 males. For every 100 females age 18 and over, there were 93.80 males.

The median income for a household in the county was $36,282, and the median income for a family was $44,212. Males had a median income of $34,688 versus $23,014 for females. The per capita income for the county was $18,544. About 8.60% of families and 12.20% of the population were below the poverty line, including 15.40% of those under age 18 and 6.70% of those age 65 or over.



Unincorporated communitiesEdit

See alsoEdit


  1. ^ a b Nez Perce County, U.S. Census Bureau, 2010. Accessed 2011-12-09.
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ - about us - history - accessed 2011-12-09
  4. ^ "Census 2000 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-02-13. 
  5. ^ US Election
  6. ^ Idaho population by county, 1900-90 - accessed 2009-05-25
  7. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 

Coordinates: 46°20′N 116°45′W / 46.33, -116.75

This page uses content from the English language Wikipedia. The original content was at Nez Perce County, Idaho. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.

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