Attendance: 70,178
100%
Capacity: 68,500
This is from espn.com. Who are you going to believe, ESPN or your lying eyes?
Attendance is based on tickets sold. I am sure a lot of Silicon Valley companies scoop up season tickets to entertain potential customers. But since the 49ers suck not much entertainment value.
They used the same accountants for this that counted ballots in the red states after the election. More votes than people living in the counties, but there is no fraud.