South Fallsburg is a hamlet and census-designated place in Sullivan County, New York, United States. As of the 2020 census, South Fallsburg had a population of 2,347. South Fallsburg is located within the Town of Fallsburg at 41°42′59″N 74°37′49″W.
As of the 2010 United States census, there were 2,870 people, 909 households, and 606 families residing in South Fallsburg. There were 1,385 housing units. The racial makeup of the CDP included 63.7% White and 14.2% African American. Hispanic or Latino of any race were 38.5% of the population. Families including a husband and a wife made up 38.8% of the population. As of 2023, an estimated 34.3% of residents were below the poverty level. ==Notable people==