The New York Times has an awesome graphical breakdown of voting data from the 2012 Presidential election.
In case you had any doubt about how the country breaks down along gender, age, race, financial status, religion, education, and community lines, just have a glance at these stats.
Obama won “Women” by 11 points (55% to 44%). This was very important, because women made up 53% of voters.
Romney won “Men” by 7 points (52% to 45%). Men were only 47% of voters.
Obama won “Young voters” (18-29) by an astounding 24 points (60% to 36%). These folks were 19% of total voters.
Obama won “Young middle aged voters” (30-44) by an impressive 7 points (52% to 45%). These folks were 26% of total voters.
Romney won “Middle-aged voters” (45-59) by 5 points (52% to 47%). These were 29% of voters.
Romney won “Older voters” (60+) by 9 points (54% to 45%). These were 25% of voters.
Obama won “Black voters” by a staggering 87 points (93% to 6%). Blacks were 13% of voters.
Obama won “Asian voters” by a remarkable 47 points (73% to 26%). Asians were 3% of voters.
Obama won “Hispanic voters” by a remarkable 44 points (71% to 27%). Hispanics were 10% of voters.
Romney won “White voters” by 20 points (59% to 39%). Whites were 72% of voters.
Obama won gay, unmarried, and working-mother, and parents-with-young-kids voters by massive margins.
Romney won “married” voters.
Obama won uneducated (no high school), modestly educated (high school), and super-educated (graduate degree) voters.
Romney won college grads by a small margin.
Obama won by a staggering margin voters who said their financial situation is the same or better than 4 years ago.
Romney won by a big margin voters who said their financial situation is worse.
Obama won households making less than $49,999 by ~20 points
Romney won households making more than $50,000 by 6-10 points
Obama easily won voters who classify themselves as Democrats and Liberals and narrowly won those classifying themselves as Moderates
Romney easily won voters who classify themselves as Republicans and Conservatives, and very narrowly won Independents
Obama won by a landslide in big cities and easily in small cities.
Romney won easily in rural areas and more narrowly in the suburbs and towns.
Obama won Jewish voters handily (2% of voters) and Catholic voters (25% of voters) narrowly
Romney won protestants (53% of voters) and white evangelical Christians (26% of voters).