|• 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)|
|• Density||25/sq mi (9.8/km2)|
|Time zone||Mountain (MST) (UTC-7)|
|• Summer (DST)||MDT (UTC-6)|
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.
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.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- "American FactFinder". U.S. Census Bureau. Retrieved 23 March 2011.
- Spokesman-Review - 2010 census - Murphy, Idaho - accessed 2011-12-12
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- AirNav.com - airport information - Murphy, Idaho - accessed 2011-12-12
- Moffatt, Riley. Population History of Western U.S. Cities & Towns, 1850-1990. Lanham: Scarecrow, 1996, 96.