Carpinteria /kɑrpɨntəˈriːə/ is a small oceanside city located in southeastern Santa Barbara County, California, east of Santa Barbara and northwest of Ventura. The population was 13,040 at the 2010 census, down from 14,194 at the 2000 census.Carpinteria Beach is known for its gentle slope and calm waves in selected sandy areas but also good surfing swells in some of the more rocky areas.