For simplicities sake I'm just going to draw off of the numbers that CNN has up because they are by far the most comprehensive list that I have been able to locate. Now, if anyone knows of more comprehensive poll data then by all means please share it with me because I'd like to see it.
Vote by Sex
Total
Democrat Republican Other/No Answer
Male (47%)
42%
56%
2%
Female (53%)
48%
49%
3%
Nothing really too noteworthy here. The percentages of the sexes were the same as in 2008 and the GOP made gains across both sexes. Men were more likey to vote for the GOP and the same held through in 2010
Vote by Race
Total
Democrat Republican Other/No Answer
White (78%)
37%
60%
3%
African-American (10%)
90%
9%
1%
Latino (8%)
64%
34%
2%
Asian (1%)
56%
40%
4%
Other (2%)
53%
43%
4%
The results here were very close to what they were in 2008. The GOP wins among white people and loses with everyone else quite handily.
Vote by Age
Total
Democrat Republican Other/No Answer
18-29 (11%)
57%
40%
3%
30-44 (23%)
47%
50%
3%
45-64 (44%)
45%
53%
2%
65 and Older (23%)
38%
59%
3%
The vote by age isn't necessarily surprising but this is the type of information that makes you feel as though the GOP's gains are not as strong as is seen at first glance.
The GOP wins every bracket here with the exception of those under 30, which the Dems win handily. 30-44 is a statistical tie for all intents and purposes so the GOP's bread and butter is those voters that are 45 and older. In 2008, voters 44 and under made up nearly half of the voters. In 2010, they were barely able to muster the 34% mark. All and all this is not a shock but a clear indicator that the much talked about enthusiasm gap was a big player and that many of the voters that put Obama in office didn't vote for the GOP but just didn't show up.

