Mount Charleston is an unincorporated town and census-designated place in Clark County, Nevada, United States. The population was 357 at the 2010 census.
The town of Mount Charleston is named for nearby Mount Charleston whose Charleston Peak at 11,916 feet (3,632 m) is the highest point in Clark County. The town of Mount Charleston is in a valley of the Spring Mountains to the northwest of Las Vegas, noted for its hiking trails, and for the Mount Charleston Lodge, a rustic hotel. At an elevation of approximately 7,500 feet, temperatures are much lower than in Las Vegas, which has an elevation of about 2,000 feet, making it a popular place for Las Vegans to vacation. The mean high temperature is 20.4 degrees (Fahrenheit) cooler than in Las Vegas. The area is also known as a vacation village for wealthy Las Vegas residents.
According to the United States Census Bureau, the census-designated place (CDP) of Mount Charleston (which may not coincide exactly with the town boundaries) has a total area of 29.4 square miles (76 km2), all of it land.
As of the census of 2000, there were 285 people, 133 households, and 80 families residing in the CDP. The population density was 9.7 people per square mile (3.7/km2). There were 362 housing units at an average density of 12.3 per square mile (4.8/km2). The racial makeup of the CDP was 97.54% White, 1.05% African American, 0.35% Pacific Islander, 0.70% from other races, and 0.35% from two or more races. Hispanic or Latino of any race were 2.46% of the population.