Figures compiled by the ministries of health, interior and defence yesterday showed that a total of 1,922 people died in June - 1,393 civilians, 380 soldiers and 149 policemen.
A further 2,610 people were wounded, the figures showed, including 1,745 civilians, 644 soldiers and 221 policemen.
The surge in violence comes with militants led by the Islamic State jihadist group having overrun stretches of territory across five provinces north and west of Baghdad in an offensive that has alarmed world leaders.
The latest toll comes on the eve of the opening of Iraq's parliament after elections on April 30, with world leaders and religious clerics urging the country's fractious politicians to unite to see off the insurgent threat.