The United Nations High Commissioner for Refugees (UNHCR), the UN Refugee Agency, has issued an Iraq Situation Update for March 2008.

The UNHCR estimates the number of Iraqi who have settled in other nearby countries as:
Syria - 1.2 to 1.4 million
Jordan - 450,000 - 500,000
Lebanon - 50,000
Egypt - 20,000 - 40,000
Turkey - 6,000 - 10,000
Iran - 57,000+

The breakdown of Iraqi population in Syria by religion is estimated as:
Sunnis - 53%
Shia - 22%
Christians - 17%
Islam unspecificed - 2%
Sabean-Mandean - 5%
Yezidis - 1%

Monthly departures to the USA of Iraqis referred by the UNHCR for 2007-2008 are:
Feb/Mar 2007 - 19 Iraqis
April 2007 - 1
May 2007 - 1
June 2007 - 63
July 2007 - 57
August 2007 - 529
September 2007 - 880
October 2007 - 450
November 2007 - 362
December 2007 - 245
January 2008 - 375
February 2008 - 444 Iraqis

“The number of Iraqis departing and returning to Iraq is not clear, with the rate of movements changing daily. What is clear is that the return movement has slowed significantly since late 2007 with many Iraqis concerned about the sustainability of security inside Iraq and their ability to access services and return to their homes.”

In addition to the estimated 2 million Iraqis who have fled their country, another 2-million plus are estimated to be displaced within the country of Iraq according to UNHCR.