So I was looking at population figures for the past 8 years for the heck of it. Of all of the metros that trended blue, Pittsburgh lost the highest number of people. Pittsburgh lost the second most people in that time period, nearly 80,000. (Katrina devastated New Orleans also trended red).
http://recenter.tamu.edu/data/popm00/pcbsa38300.html
Combine that with an already old population (old people tend to stay put and vote more conservatively), and the fact that most of those 80,000 that left were likely higher educated/ younger progressive minded folks, and you have a perfect set up for a metro to trend red against the grain of the overall national trend.
There is good news in the near future, however, concerning population trends in Pittsburgh. If you look closely at the data in the site above, you can see that Pittsburgh has not had that much of a problem with domestic out-migration compared to other cities.
Percentage wise, Pittsburgh is not only losing less of its population to domestic migration than the rest of the rust belt, but to all of the large coastal cities save the northwest. The catch is that they are making up for it with some combination of births and/or international immigration.
This is why the past 3 years of data are making me very optimistic. There is a clear sign that births have bottomed out several years ago and are on an upswing again. Likewise the death-rate has appeared to have topped out and has begun to lower to normal levels as well.
Also, and probably the biggest plus of all, the net domestic migration has begun a noticeable trend towards the positive side. If this trend holds true for this year, then the pop. data for the region
could show a net positive increase in domestic migration for the first time since
1971 (unless you count that small aberration in 1992). And this is all before the massive publicity of the city in 2009 began to make its rounds... G20, netroots, 2 sports championships, most livable again...ect ect.
So all I am saying is get excited people, because we could potentially see some amazing changes happen to the city in the next several years. I just hope that the recent trends aren't entirely recession related... but I don't even think that will matter at this point. The momentum has started, and as long as there are enough jobs here the people will come... they aren't all leaving the expensive and crowded coastal cities for no reason of course.
Just my 2 cents.