And organisers of the visit by Pope Benedict XVl are confident the remaining 25,000 places will be filled.
Controversy surrounding suggestions that the ticketholders make a £20 donation to help cover the costs of the September 16 visit has not affected takeup, according to sources.
A spokesman for the Catholic Church said: "So far, three quarters of the tickets have been allocated.
"That is quite a remarkable result considering the timetable was so tight and we had to try and distribute the bulk of the passes during the peak summer holiday period.
"We anticipate a bit of a scramble for tickets now as the event looms closer."
The Pope will meet the Queen in Edinburgh before travelling by Popemobile down Princes Street and on to Glasgow.
SIC: DRUK