De Lamar (also DeLamar) is a ghost town in Owyhee County, Idaho, United States. Its elevation is 5,463 ft (1,665 m), and it is approximately 6 mi (9.7 km) west of Silver City. The community lies within an area governed by the Bureau of Land Management. In 1976, the ghost town was listed on the National Register of Historic Places as a historic district. Although the district included an area of approximately 1,600 acres (650 ha), only four of the community's buildings remained in sufficient condition to qualify as contributing properties.