Which city co-hosted the 1984 Summer Paralympic Games in the United States?

New York City co-hosted the 1984 Summer Paralympic Games in the United States.

The 1984 Games were split between two host locations: Stoke Mandeville in England and venues in New York City. New York hosted events for athletes with physical disabilities, while Stoke Mandeville hosted events for athletes with cerebral palsy.

The arrangement followed a change in the planned host structure. The Games were originally connected with the 1984 Los Angeles Olympics, but Los Angeles did not ultimately host the Paralympic competition. The New York events took place from 17 to 29 June 1984, and the Stoke Mandeville events followed from 22 July to 1 August.

This split hosting arrangement is why Los Angeles is not the answer, despite being the city of the 1984 Olympic Games.