The accident was reported about 5:40 p.m. at S. 277th St. and Starlake Road, Captain Kyle Ohashi of the Kent Fire Dept. said.
Seven people from the van, including a child, were taken to a local hospital, he said.
Two people in the car were transported to the hospital; one of them had serious injuries.
S. 277th Street was closed for several hours while the King County Sheriff's Office investigated.