Town say they won’t know the total of early bird season ticket sales until later in the week. Saturday marked the deadline for purchasing season tickets at the cheapest prices.
A Ticket Office spokesperson said: "We have as many as 10 bags of post sitting unopened in the office. There is always a flood of applications that come in during the last week of the early bird offer and this year has been no exception.
"It will be at least another week before we have processed all the applications and have an idea of the take up on tickets."
Town, who have 15,950 season ticket holders for this season, froze prices for 2010/11.
Meanwhile, midfielder Carlos Edwards has admitted that he may have been too relaxed since joining the Blues in August: "Speaking very openly, maybe I've been taking things for granted.
"It's not just me who's been saying I'm too laid-back, the gaffer has mentioned it to me and so has my wife, so I have to prove them wrong."
Edwards, who has struggled to hit his best form since moving from Sunderland, says he expects to be part of Roy Keane’s squad next season when he sees the Blues making significant progress: "We just need to strengthen up in one or two places and I'm looking forward to the challenge and hopefully I can be here next season to help the team push for promotion.
"I have no concern that I won't be here next season but you never know, it's a strange game, but at this present time I'm fully committed to the team and the club and don't see any reason for me to be leaving unless the manager thinks otherwise."