Red Hill is a census-designated place (CDP) in Horry County, South Carolina, United States. The population was 13,223 at the 2010 census, up from 10,509 at the 2000 census.
Geography
Red Hill is in south-central Horry County and is bordered to the north by the city of Conway, the county seat, and to the south by Socastee. U.S. Route 501 passes through the northern part of Red Hill, connecting Conway to the north with Myrtle Beach, to the southeast. South Carolina Highway 544 runs north–south the length of Red Hill, connecting Conway with Socastee. The west side of Red Hill is bordered by the Waccamaw National Wildlife Refuge.
According to the United States Census Bureau, the CDP has a total area of , of which are land and , or 0.52%, are water.
| align = right
| align-fn = center
2020 census
{| class="wikitable"
|+Red Hill racial composition
!Race
!Num.
!Perc.
|-
|White (non-Hispanic)
|11,308
|71.09%
|-
|Black or African American (non-Hispanic)
|1,753
|11.02%
|-
|Native American
|60
|0.38%
|-
|Asian
|250
|1.57%
|-
|Pacific Islander
|8
|0.05%
|-
|Other/Mixed
|778
|4.89%
|-
|Hispanic or Latino
|1,749
|11.0%
|}
As of the 2020 census, Red Hill had a population of 15,906. The median age was 45.4 years. 18.1% of residents were under the age of 18 and 25.7% were 65 years of age or older. For every 100 females, there were 94.1 males, and for every 100 females age 18 and over, there were 92.8 males.
There were 6,516 households in Red Hill, including 3,980 families. Of all households, 23.5% had children under the age of 18 living in them, 47.5% were married-couple households, 17.7% were households with a male householder and no spouse or partner present, and 27.9% were households with a female householder and no spouse or partner present. About 26.6% of all households were made up of individuals, and 13.6% had someone living alone who was 65 years of age or older.