This is the official count supplied by the Department of Defense.  It includes no mercenary (contract military) deaths or injuries, much less civilian deaths, injuries or displacements.

OPERATION IRAQI FREEDOM (OIF) U.S. CASUALTY STATUS
AS OF:   March 2, 2007, 10 a.m. EST

OIF U.S. Military Casualties           Total                   Non-                  WIA             WIA
by Phase                                        Deaths   KIA       Hostile               RTD             Not RTD

Combat Operations -
19 Mar 03 thru 30 Apr 03                      139      109          30                    116                426

Post Combat Ops -
1 May thru Present                            3,014   2,432        582                13,134            10,109

OIF U.S. DoD Civilian
Casualties                                               7         6           1

Totals                                               3,160   2,547       613                 13,250            10,535

 KIA – Killed in Action;  WIA – Wounded in Action;  RTD – Returned to Duty