One rocket hit an electric pole cutting power supplies to a nearby kibbutz. The remaining rockets landed in open fields.
The Islamic Jihad terror group claimed responsibility for the attack, saying it was in retaliation to Israel's military incursions in the Gaza Strip.
Avi Peretz, whose brother Yaniv sustained shrapnel wounds to the hand when a rocket hit his house, told Ynet: "The house was badly hit. I am ashamed of the prime minister and all the decision-makers."
The Mayor of Sderot, Eli Moyal, who was attending a conference in Netanya at the time of the attack, hoped the newly appointed defense minister, Ehud Barak, will push for new security plans to halt rocket attacks from the Gaza Strip.
"The emergency situation that was declared in Sderot continues. Those who believe that this will end alone are mistaken. We have a new defense minister and we will see what he does," Moyal said.
Earlier Wednesday, a Qassam rocket narrowly missed a strategic facility in the southern city of Ashkelon. The army then began an airstrike against rocket launch sites in the northern Gaza Strip.
The Knesset approved Wednesday a bill that designates Sderot and towns near the Gaza Strip as located in the front line. The bill grants residents and businesses in those areas generous tax breaks.