The acknowledgement brings the official tally of civilians killed in US-led strikes in Iraq and Syria to 41 since counter-IS operations began in August 2014. In addition, a total of 28 civilians have been injured, the Pentagon claims.
"In this type of armed conflict, particularly with an enemy who hides among the civilian population, there are going to be, unfortunately, civilian casualties at times," US Central Command (CENTCOM) spokesman Colonel Pat Ryder said.
"We do everything we can to avoid it, but that's just the nature of the enemy we are dealing with."
One of the incidents disclosed today occurred October 5 in Atshanah, Iraq when a strike on IS fighters at a mortar position also killed eight civilians.
A January 11 attack on a cash distribution system near the Iraqi city of Mosul killed one civilian and injured five others.
That particular strike drew international attention because military video of the attack showed millions of dollars worth of cash fluttering across the city afterward.
"The coalition takes all feasible precautions to avoid civilian casualties during the course of military operations," CENTCOM said in a statement.
The strikes took place between September 10 and February 2.
