The average for me day and and day out over the course of a month(s) is about 1700 a day to maintain. Obviously there are some 1000 days and some 2200 days thrown in there, but those are rare. I generally stick to 1550-1750 range most days, erring on the higher end usually.
Obviously, everyone's caloric needs are different as is evidenced here; but also obviously it depends on how much one works out. If I work out more than my baseline 90min a week (I am currently up to 4hrs a week) I can usually have 50-100 calories more a day without doing any damage.