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Murphy, Idaho
Census-designated place
Country United States
State Idaho
County Owyhee
 • Total 3.839 sq mi (9.94 km2)
 • Land 3.839 sq mi (9.94 km2)
 • Water 0 sq mi (0 km2)
Elevation 2,820 ft (860 m)
Population (2010)
 • Total 97
 • Density 25.27/sq mi (9.76/km2)
Time zone Mountain (MST) (UTC-7)
 • Summer (DST) MDT (UTC-6)
ZIP codes 83650
Area code(s) 208

Murphy is an unincorporated census-designated place in Owyhee County, Idaho, United States. The county seat of Owyhee County, it is among the smallest county seats nationwide. As of the 2010 census, its population was 97.

Murphy is part of the Boise City–Nampa, Idaho Metropolitan Statistical Area.


Murphy developed around a railhead of the Boise, Nampa and Owyhee Railroad built in 1899. The state legislature selected the town as county seat in 1934, succeeding Silver City (which was located in the Owyhee Mountains and had been in decline; it is now defunct). The railroad operated until 1947. Murphy is the home of the Owyhee County Historical Museum and Library.

The community was named after Cornelius "Con" Murphy, a crew boss with the Boise, Nampa and Owyhee Railroad.

Taylorcraft Murphy Idaho June 1994R edited-2
View looking northwest from Murphy airport toward Route 78


Murphy is located at 43°13′06″N 116°33′08″W / 43.21833°N 116.55222°W / 43.21833; -116.55222, at an elevation of 2,820 feet (860 m) above sea level; it is 25 miles (40 km) south of Nampa.


Murphy's airstrip is situated immediately northeast of the community, without a control tower. Its 2,500-foot (760 m) asphalt runway is oriented NW-SE (12/30), parallel with State Highway 78. The elevation drops 60 feet (18 m) in the northwest (30) direction, from 2,855 to 2,795 feet.

Historical population
Census Pop.
1900 80
1910 102 27.5%
1920 150 47.1%
1930 75 −50.0%
1950 50
1960 50 0.0%
1970 100 100.0%
1980 150 50.0%
1990 150 0.0%
2010 97
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