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Niobrara County, Wyoming

Niobrara County, Wyoming
Map of Wyoming highlighting Niobrara County
Location in the state of Wyoming
Map of the United States highlighting Wyoming
Wyoming's location in the U.S.
Founded 1913
Named for Niobrara River
Seat Lusk
Largest town Lusk
 • Total 2,628 sq mi (6,806 km2)
 • Land 2,626 sq mi (6,801 km2)
 • Water 1.9 sq mi (5 km2), 0.07%
Population (est.)
 • (2014) 2,463
 • Density 0.9/sq mi (0/km²)
Congressional district At-large
Time zone Mountain: UTC-7/-6
Website .org.niobraracountywww
Niobrara County (WY) SR85

Niobrara County is a county located in the U.S. state of Wyoming. As of the 2010 census, the population was 2,484,[1] making it the least populous county in Wyoming. Its county seat is Lusk.[2] It is west from the Nebraska-South Dakota state line.


  • History 1
  • Geography 2
    • Adjacent counties 2.1
    • Major Highways 2.2
    • National protected area 2.3
  • Demographics 3
  • Government and infrastructure 4
  • Communities 5
    • Towns 5.1
    • Census-designated place 5.2
    • Unincorporated communities 5.3
  • See also 6
  • References 7


Niobrara County was created on February 21, 1911, with land detached from

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved January 25, 2014. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^ Long, John H., ed. (2004). "Wyoming: Individual County Chronologies". Wyoming Atlas of Historical County Boundaries.  
  4. ^ Urbanek, Mae (1988). Wyoming Place Names. Missoula, MT: Mountain Press Publishing Company.  
  5. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved August 18, 2015. 
  6. ^
  7. ^ "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2014". Retrieved June 4, 2015. 
  8. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved August 18, 2015. 
  9. ^ "Historical Decennial Census Population for Wyoming Counties, Cities, and Towns". Wyoming Department of Administration & Information, Division of Economic Analysis. Retrieved January 25, 2014. 
  10. ^ "American FactFinder".  
  11. ^ "Contact Institutions." Wyoming Department of Corrections. Retrieved on August 22, 2010.
  12. ^ "About the Department of Corrections." Wyoming Department of Corrections. Retrieved on August 22, 2010.


See also

Unincorporated communities

Census-designated place



The Wyoming Department of Corrections Wyoming Women's Center is located in Lusk.[11] The facility was operated by the Wyoming Board of Charities and Reform until that agency was dissolved as a result of a state constitutional amendment passed in November 1990.[12]

Government and infrastructure

The median income for a household in the county was $29,701, and the median income for a family was $33,714. Males had a median income of $25,909 versus $17,016 for females. The per capita income for the county was $15,757. About 10.70% of families and 13.40% of the population were below the poverty line, including 15.00% of those under age 18 and 15.60% of those age 65 or over.

In the county the population was spread out with 22.60% under the age of 18, 6.10% from 18 to 24, 26.00% from 25 to 44, 26.60% from 45 to 64, and 18.70% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 95.20 males. For every 100 females age 18 and over, there were 88.80 males.

There were 1,011 households out of which 27.10% had children under the age of 18 living with them, 57.60% were married couples living together, 6.00% had a female householder with no husband present, and 32.80% were non-families. 29.50% of all households were made up of individuals and 14.10% had someone living alone who was 65 years of age or older. The average household size was 2.28 and the average family size was 2.81.

As of the census[10] of 2000, there were 2,407 people, 1,011 households, and 679 families residing in the county. The population density was 1 person per square mile (2.6/km²). There were 1,338 housing units at an average density of 0 per square mile (0/km²). The racial makeup of the county was 98.05% White, 0.12% Black or African American, 0.50% Native American, 0.12% Asian, 0.50% from other races, and 0.71% from two or more races. 1.50% of the population were Hispanic or Latino of any race. 35.1% were of German, 18.7% English, 11.2% Irish and 5.7% American ancestry according to Census 2000.

Niobrara County (WY) SR85N


National protected area

Major Highways

Adjacent counties

In comparison to the state of Rhode Island, the county has more than twice the land area, with approximately 1/500 of the population.[6]

According to the U.S. Census Bureau, the county has a total area of 2,628 square miles (6,810 km2), of which 2,626 square miles (6,800 km2) is land and 1.9 square miles (4.9 km2) (0.07%) is water.[5]


The county was named for the Niobrara River, which takes its source near the county seat of Lusk.[4]


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