Check out Passyunk Square/East Passyunk while you're here. Typical demographic seems to be early 30s. Lots of restaurants, some bars, grocery stores, and it is right on one of the main subway lines. I just moved here a few months ago and love it. We rent a 2bed/2 bath for 1750 a month. Also, I have a car but it is more of a nuisance to have than convenience. I can get just about anywhere in the city by train or bus, and that includes the many excellent parks that are here.

Edit to add: detached homes are not common in this part of the city, but some townhouses may have backyards or at least patios. It's a good place to live short term and get a feel for the city before deciding on a more permanent solution.