Summerlin South, also identified on maps as South Summerlin, is a census-designated place (CDP) located in Clark County, Nevada, within the United States. It is situated on the western edge of the Las Vegas Valley and lies adjacent to the Red Rock Canyon National Conservation Area.
The area serves as a southward extension of the master-planned community of Summerlin. According to the 2020 Census, the population of Summerlin South was 30,744. Nearly all of the CDP is located within the 89135 ZIP code.