The man was arrested at about 7:20 a.m. at his home in Trimley, near the port of Felixstowe, Detective Chief Superintendent Stewart Gull said in a brief statement to reporters. He declined to say where the suspect was being held.
"He has been arrested on the suspicion of murdering all five women," Gull said.
"The man is currently in custody at a police station in Suffolk where he will be questioned about the deaths later today," he said.
Trimley is 8 miles (13 kilometers) southeast of Ipswich, where all five victims were known to work as prostitutes.
Their naked bodies were found dumped in rural areas near Ipswich beginning Dec. 2.
Earlier in the morning, police announced that coroner's inquests into the deaths of Tania Nicol, Anneli Alderton, Paula Clennell and Annette Nicholls had been postponed, reports AP.
Clennell, 24, died of compression to her neck, and Alderton, 24, was strangled, a senior pathologist determined. Post-mortem examinations of the bodies of Nicol, 19, and Nicholls, reached no conclusion on the cause of death.
An inquest into the death of Gemma Adams, 25, was opened and adjourned last week. The pathologist reached no conclusion about the cause of her death.
Fearing that peace might break out with the two Koreas talking to each other, Washington instructed South Korean President to keep the message about anything but peace
The USA does not have a picture of the strong Russia, and the Americans will never allow Russians become strong. Sanctions show how obvious the conflict is
The Chinese military believe that Beijing and Moscow must resist pressure from Washington together