The Economists gives an interesting difference between Republican voters and Democrat voters,

Mr Bush’s optimistic message gave him a commanding advantage in pro-growth America. Joel Kotkin, a Los Angeles-based writer who knows as much about the grassroots economy as anyone, points to the close relationship between growth, both demographic and economic, and a propensity to vote Republican. Most of Mr Kerry’s base was in stagnant America. Democratic strongholds such as Chicago, Cleveland, San Francisco and Mr Kerry’s Boston have been losing people and jobs.

Mr Bush’s America, for the most part, is booming. This is not just because the red states that voted for Mr Bush are growing faster than the blue states that voted for Mr Kerry. It is also because Mr Bush did well in the fast-growing suburbs and “exurbs” in both red and blue states. Mr Bush’s triumph in greater Phoenix, greater Houston and greater Atlanta was perhaps predictable. But Mr Kotkin points out that he also triumphed in what he calls the “third California”: the vast inland region that is producing the bulk of the state’s growth at the moment.(Emphasis added)

First, the [democrat] party is increasingly dominated by people who have no yearning for growth: public-sector workers; academics and trustafarians who both live off inherited endowments; environmentalists who want to regulate SUVs and urban sprawl; and billionaires who are too rich to aspire to anything. (One of the best statistics of the campaign is that people worth $1m-10m supported Mr Bush by a 63-37% margin, whereas those worth more than $10m favoured Mr Kerry 59-41%.)