A few years back Money Magazine published an interesting article about career choices for those with political science degrees that you might find of interest:
http://money.cnn.com/2000/09/08/career/q_degreepoliticalscience/
You might also find this data interesting from the Bureau of Labor Statistics:
http://www.bls.gov/oes/current/oes193094.htm
It shows the mean wages for political science degrees, and also those metropolitan areas where political science jobs are most concentrated. DC is not surprising, but you might note that the Seattle metropolitan area also ranks in the top four.
