South Dennis, Massachusetts

South Dennis, Massachusetts
South Dennis Congregational Church
Location in Barnstable County and the state of Massachusetts.
Coordinates: 41°42′21″N 70°9′45″W / 41.70583°N 70.16250°W / 41.70583; -70.16250
CountryUnited States
StateMassachusetts
CountyBarnstable
TownDennis
Area
 • Total
4.75 sq mi (12.30 km2)
 • Land4.55 sq mi (11.79 km2)
 • Water0.20 sq mi (0.52 km2)
Elevation
33 ft (10 m)
Population
 (2020)
 • Total
3,899
 • Density856.9/sq mi (330.84/km2)
Time zoneUTC-5 (Eastern (EST))
 • Summer (DST)UTC-4 (EDT)
ZIP code
02660
Area code508
FIPS code25-63655
GNIS feature ID0615880

South Dennis is a census-designated place (CDP) in the town of Dennis in Barnstable County, Massachusetts, United States. As of the 2020 census, South Dennis had a population of 3,899. It is the largest of the five CDPs in Dennis.