Demographic Maps (for election night)

[J. J.]

18-29 year old voters looks like they were same percentage of the vote as 2004.

http://www.cnn.com/ELECTION/2008/results/polls.main/

[J. J.]

18-29 year old voters looks like they were same percentage of the vote as 2004.

http://www.cnn.com/ELECTION/2008/results/polls.main/

Only if by "the same" you mean "increased from 17% to 18% in exit polls which are a dubious measure anyway."

http://www.cnn.com/ELECTION/2004/pages/results/states/US/P/00/epolls.0.html

No, I was using Pew's prior numbers:
http://www.pewtrusts.org/news_room_detail.aspx?id=17696

[J. J.]

18-29 year old voters looks like they were same percentage of the vote as 2004.

http://www.cnn.com/ELECTION/2008/results/polls.main/

The difference being the huge margin young voters gave Obama. Turnout overall seems to have fallen though, at least here in California. Or maybe there are just that many early votes out still.

Every 4 years people talk about how Californian turnout has fallen, and then every 4 years it turns out that there are actually another couple of million provisional and absentee ballots.

It was from exit polls, and it doesn't look like there was a great change this year (possibly a drop due to rounding, but a fractional point).

The one state where we have data, NC, it actually dropped as percentage of the total vote at least in early voting.  2004 was an uptick year in the 18-29 voters.