Summerlin is a 22,500-acre (9,100 ha) master-planned community under development by The Howard Hughes Corporation in the Las Vegas Valley of Nevada near the Spring Mountains and Red Rock Canyon National Conservation Area. It lies within the city of Las Vegas, Nevada, and in unincorporated Clark County. Summerlin is named for Howard Hughes' grandmother, Jean Amelia Summerlin. The community includes a variety of land uses, including: residential, commercial, recreational, educational, medical, open space, and cultural. As of the 2010 census, Summerlin's population is nearly 100,000, up from its 59,000 population in 2000.