Board Thread:Show-Related Questions and Answers/@comment-5963744-20130403160708/@comment-4839682-20130411222406

180.194.29.85 wrote: he is turning 12 he is 11 in manhattan episode rewatch it again henry said so!

He's 11. Either he and Emma were rounding his age up (like people do when their birthday is near) or they're celebrating his birthday late. For him to be 12, it would need to be over a year since the events of the Pilot, and that's clearly not the case.