In San Bernardino County, Lucerne Valley's area is also identified as County Service Area {CSA) 29. While Lucerne Valley's "town limit" signs are within two miles of each other, the County Service Area Limits are much larger: in the west to Joshua Road (unpaved road east of Milpas Rd. on Hwy. 18), to the north at the height of Ord Mountain on Highway 247, to the south at the entrance to Cushenbury Canyon on Highway 18, and at Old Woman Springs Ranch as the eastern boundary. On June 11, 2013, Lucerne Valley and Johnson Valley were merged under the same Municipal Advisory Council, which serves as an advisory reporting agency to the County of San Bernardino District Supervisor concerning the region. On August 14, 2013, Johnson Valley was sworn into the same Municipal Advisory Council as Lucerne Valley. CSA 29's borders, however, remain unchanged from the move.