Rescue workers returned to the search Tuesday morning. Their work had been suspended during the night.
The F/A-18D Hornet fighter jet crashed Monday near Marine Corps Air Station Miramar.
Three people — a mother, her baby and a grandmother — were killed and officials said a fourth person, believed to be a small child, was in the house and had not been found.
The pilot escaped from the plane before the crash. He was found suspended by his parachute in a tree and he was being treated at a hospital.
Two homes were destroyed and three were damaged.