About This Place
South Yarmouth is an unincorporated village and census-designated place (CDP) in the town of Yarmouth in Barnstable County, Massachusetts, United States. The population was 11,603 at the 2000 census.
South Yarmouth is located at 41°40′4″N 70°11′59″W / 41.66778°N 70.19972°W / 41.66778; -70.19972 (41.667908, -70.199774).
According to the United States Census Bureau, the CDP has a total area of 20.3 km² (7.8 mi²). 18.1 km² (7.0 mi²) of it is land and 2.2 km² (0.8 mi²) of it (10.70%) is water.