Recently I've been noticing that the word counts included in the queries I've been receiving have started to get progressively higher again, particularly for YA. Many of the query writers included Stephanie Meyers or JK Rowling as an example of why it's acceptable to have a YA word count that is north of 160k.
Now, I've said this before but I'll say it one more time: Often the first book in a successful series has a considerably shorter word count than the subsequent volumes in that series. So if you're querying for something that you'd like to develop into a series, the first book at the very least had better not be a door-stopper.
And just for the record, the word count for Twilight, the first of the Stephanie Meyers YA vampire books, was approximately 115k. That's a bit high but not outrageous. The word count for Harry Potter and the Sorcerer's Stone was approximately 77k, which is right in line with word count guidelines for upper middle-grade and YA fiction.
Here's a link back to an earlier post about rule-of-thumb word counts for various fiction genres; hopefully it'll be helpful to some of you who may be struggling with this issue.