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Traill County, North Dakota

Traill County, North Dakota
Map of North Dakota highlighting Traill County
Location in the state of North Dakota
Map of the United States highlighting North Dakota
North Dakota's location in the U.S.
Founded February 23, 1875[1]
Seat Hillsboro
Largest city Mayville
 • Total 863 sq mi (2,235 km2)
 • Land 862 sq mi (2,233 km2)
 • Water 0.6 sq mi (2 km2), 0.07%
Population (est.)
 • (2014) 8,082
 • Density 9.4/sq mi (4/km²)
Congressional district At-large
Time zone Central: UTC-6/-5
Website .us.nd.traill.cowww

Traill County is a county located in the U.S. state of North Dakota. As of the 2010 census listed the population at 8,121.[2] Its county seat is Hillsboro,[3] and its largest city is Mayville. The county was formed in 1875.[1][4]


  • History 1
  • Geography 2
    • Adjacent counties 2.1
  • Demographics 3
  • Transportation 4
    • Major highways 4.1
    • Airports 4.2
  • Communities 5
    • Cities 5.1
    • Townships 5.2
    • Census-designated places 5.3
    • Unincorporated communities 5.4
  • See also 6
  • Notes 7
  • External links 8


Traill County was created in 1875 by the 1874-75 territorial legislature. It was named after Walter John Strickland Traill, an employee of the Hudson's Bay Company and son of Canadian pioneer Catharine Parr Traill.[1]

County headquarters were originally located in a small single-story building in Caledonia. Several replacement courthouses were build during the late 19th century and several votes to move the county seat to Mayville narrowly failed. Efforts to move the county seat to Hillsboro were more successful, and all county records were moved there in 1890.[5] The current Traill County Courthouse started construction in 1905 and is listed in the National Register of Historic Places.[6]


According to the U.S. Census Bureau, the county has a total area of 863 square miles (2,240 km2), of which 862 square miles (2,230 km2) is land and 0.6 square miles (1.6 km2) (0.07%) is water.[7]

Adjacent counties


As of the census of 2010, there were 8,121 people, 3,341 households, and 2,231 families residing in the county. The population density was 10 persons per square mile (4/km²). There were 3,708 housing units at an average density of 4 per square mile (2/km²). The racial makeup of the county was 97.31% White, 0.11% Black or African American, 0.94% Native American, 0.15% Asian, 0.01% Pacific Islander, 0.96% from other races, and 0.52% from two or more races. 2.18% of the population were Hispanic or Latino of any race. 58.9% were of Norwegian and 20.6% German ancestry.

There were 3,341 households out of which 30.9% had children under the age of 18 living with them, 58.0% were married couples living together, 5.4% had a female householder with no husband present, and 33.2% were non-families. 29.3% of all households were made up of individuals and 15.10% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 3.00.

In the county the population was spread out with 24.8% under the age of 18, 9.7% from 18 to 24, 24.8% from 25 to 44, 21.6% from 45 to 64, and 19.1% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 100.8 males. For every 100 females age 18 and over, there were 97.9 males.

The median income for a household in the county was $37,445, and the median income for a family was $45,852. Males had a median income of $30,138 versus $20,583 for females. The per capita income for the county was $18,014. About 6.4% of families and 9.2% of the population were below the poverty line, including 9.6% of those under age 18 and 8.1% of those age 65 or over.


Major highways


The following public-use airports are location in Traill County:


Sunflower field in Traill County



  • Belmont
  • Bingham
  • Blanchard
  • Bloomfield
  • Bohnsack
  • Buxton
  • Caledonia
  • Eldorado
  • Elm River
  • Ervin
  • Galesburg
  • Garfield
  • Greenfield
  • Herberg
  • Hillsboro
  • Kelso
  • Lindaas
  • Mayville
  • Morgan
  • Norman
  • Norway
  • Roseville
  • Stavanger
  • Viking
  • Wold

Census-designated places

Unincorporated communities

See also


  1. ^ a b c
  2. ^ a b
  3. ^
  4. ^
  5. ^
  6. ^
  7. ^
  8. ^
  9. ^
  10. ^
  11. ^
  12. ^

External links

  • Traill County official website
  • Traill County Economic Development Commission website
  • Centennial of Traill County, 1875-1975 from the Digital Horizons website
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