An estimated 1,000 people a day are returning across
Most of the returnees are coming from
An improving security situation - but also the lack of job opportunities for Iraqis in
However, at least five people died in a bombing in Ramadi on Wednesday.
A suicide bomber slammed a vehicle into a courthouse compound, police said.
The attack came as a sudden return to violence in a region which has become markedly more peaceful since Sunni tribesmen joined forces with the
Violence falls
Over 4.4m Iraqis are thought to have been displaced by violence since the US-led invasion of 2003 - but a growing trickle of those who fled the country are now coming back.
The UN's refugee agency, the UNHCR, estimates about 45,000 Iraqis returned from
One factor in their return is likely to be a sharp and sustained drop in all kinds of violence, particularly in parts of the capital
But the stream of returnees from
That is probably because those in
Incentives
Syrian authorities, who have seen the country's population swollen by up to 10% by the flood of Iraqi refugees, have begun imposing visa requirements.
Iraqi authorities, for their part, have been providing incentives for refugees to return, such as free bus rides from
They have also tried to encourage those Iraqis displaced inside the country - who constitute about half the total - to return to their homes by offering families grants of $800 to do so.
So far 4,700 families have taken up the offer with another 8,500 registered for them.
But not all the returnees are confident the security improvement is permanent.
Watching decorators paint the home he has returned to in east Baghdad from Syria, retired policeman Abu Naseem told Reuters news agency: "After all this effort to fix the house I hope there will be no more fighting.
"But I think the violence will be back again."
PHOTO CAPTION
An Iraqi worker unloads cardboard boxes from a bus carrying Iraqi returnees to