Wigan on Boxing Day was a sell out of 31048. Current capacity 34742, you’ll never see that many at the Riverside due to the amount of segregation. Poor attendances by visiting teams reduces the average attendance drastically, the average attendance will only go up if we reach the Premier League as most teams will bring on average 2500 to 3000 fans
current capacity is nowhere near 34742 (i see that figure is quoted on wiki) maybe before the Big Screen and Media area was moved to back of the East Stand