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Sheridan County, Montana facts for kids

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Sheridan County
Sheridan County Courthouse in Plentywood
Sheridan County Courthouse in Plentywood
Map of Montana highlighting Sheridan County
Location within the U.S. state of Montana
Map of the United States highlighting Montana
Montana's location within the U.S.
Country  United States
State  Montana
Founded March 11, 1913
Named for Philip Sheridan
Seat Plentywood
Largest city Plentywood
 • Total 1,706 sq mi (4,420 km2)
 • Land 1,677 sq mi (4,340 km2)
 • Water 29 sq mi (80 km2)  1.7%
 • Total 3,539
 • Density 2.0744/sq mi (0.8009/km2)
Time zone UTC−7 (Mountain)
 • Summer (DST) UTC−6 (MDT)
Congressional district At-large
  • Montana county number 34

Sheridan County is a county in the U.S. state of Montana. As of the 2020 United States Census, the population was 3,539. Its county seat is Plentywood. Its northern boundary is the Canada–United States border south of Saskatchewan.


According to the U.S. Census Bureau, the county has a total area of 1,706 square miles (4,420 km2), of which 1,677 square miles (4,340 km2) is land and 29 square miles (75 km2) (1.7%) is water.

Major highways

  • MT-16.svg Montana Highway 16
  • MT-5.svg Montana Highway 5

Adjacent counties and rural municipalities

National protected area


Historical population
Census Pop.
1920 13,847
1930 9,869 −28.7%
1940 7,814 −20.8%
1950 6,674 −14.6%
1960 6,458 −3.2%
1970 5,779 −10.5%
1980 5,414 −6.3%
1990 4,732 −12.6%
2000 4,105 −13.3%
2010 3,384 −17.6%
2020 3,539 4.6%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2020

2010 census

As of the 2010 United States Census, there were 3,384 people, 1,587 households, and 944 families living in the county. The population density was 2.0 inhabitants per square mile (0.77/km2). There were 2,089 housing units at an average density of 1.2 per square mile (0.46/km2). The racial makeup of the county was 95.4% white, 1.7% American Indian, 0.4% Asian, 0.2% black or African American, 0.3% from other races, and 2.0% from two or more races. Those of Hispanic or Latino origin made up 1.5% of the population. In terms of ancestry, 33.8% were Norwegian, 26.0% were German, 12.0% were Danish, 11.6% were Irish, 5.5% were Swedish, 5.3% were English, and 5.0% were American.

Of the 1,587 households, 21.3% had children under the age of 18 living with them, 49.5% were married couples living together, 5.7% had a female householder with no husband present, 40.5% were non-families, and 37.1% of all households were made up of individuals. The average household size was 2.08 and the average family size was 2.70. The median age was 50.3 years.

The median income for a household in the county was $39,578 and the median income for a family was $55,313. Males had a median income of $46,932 versus $22,107 for females. The per capita income for the county was $26,537. About 6.4% of families and 14.5% of the population were below the poverty line, including 8.8% of those under age 18 and 10.4% of those age 65 or over.




Census-designated places

Unincorporated communities

Ghost towns

See also

Kids robot.svg In Spanish: Condado de Sheridan (Montana) para niños

National Hispanic Heritage Month on Kiddle
Famous Hispanic aviators
Manuel J. Fernandez
Robert Cardenas
Richard G. Candelaria
Oscar F. Perdomo
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