The 1994 FIFA World Cup was hosted at nine U.S. stadiums, with capacities ranging from about 53,000 to 94,000 seats.

Stadiums and capacities

Stadium City Capacity
Rose BowlPasadena94,000
Stanford StadiumStanford84,000
Pontiac SilverdomePontiac78,000
Giants StadiumEast Rutherford76,000
Soldier FieldChicago65,000
Cotton BowlDallas64,000
Citrus BowlOrlando62,000
Foxboro StadiumFoxborough54,000
RFK StadiumWashington, D.C.53,000

Quick note

Some sources list slightly different figures for the same venues, usually because they reflect different seating configurations or later renovations. The largest venue was the Rose Bowl, and the smallest was RFK Stadium.

TL;DR: World Cup 1994 used nine stadiums in the U.S., led by the Rose Bowl at 94,000 and ending with RFK Stadium at 53,000.