Indianapolis 500 Attendance 2025. Mark your calendars for the 2025 aes 500 festival parade, set to take place on saturday, may 24, in downtown indianapolis. Before that, nearly 85,000 people showed.
In 2020, for the first time in its history, the indianapolis 500 was hosted without any spectators. Business was booming for indianapolis motor speedway owner roger penske at the 107 th indianapolis 500 as more the 330,000 spectators jammed into the facility watch.
