I think you would be surprised the number of young professionals in the Carlisle area. There is a very active young professional group in the town. When I moved to Carlisle in 2001 fresh out of college I would have agreed that there not much for a young professional. However since then it has changed immensely. The biggest change has been the addition of some modern rental units that attracts the YP while still having many affordable rentals. What makes it popular is a very active downtown area. There are so many independent restaurants to choose from. It not just your standard American and Italian cuisines you have every thing from Belgian, German, British, Thai, Moroccan Japanese ect. It one of the few places where the market is not dominated by chain places....partially because most are in near by Mechanicsburg area. Whenever I go out I always see groups of YP eating together. One interesting trend is a blossoming brewing industry. There are 4 current breweries/brew pubs in the town. One is expanding to open a second location with food along with another new one opening soon. While I know your not a big drinker they do offer a relaxed social atmosphere that more about being social then getting drunk. You are still close to State College (1:30 min non football and about 1:45-2 on game time depending on how early you leave). You have Harrisburg and Hershey close by for a wide variety of events. The best party for me is you have a small town feel with all the amenities of a city close by. If you want the city you have plenty close enough for a day trip Baltimore (1:30) Philly (2:00) Washington,DC (2 hr), New York (3hr) and Pittsburgh (3hr). Cumberland County is the fastest growing county in PA so there will be plenty of opportunities for you during and after law school with the Dickinson connection
I have linked the two nicest apartment communities in Carlisle. Summerbridge is currently being built but is the nicest. When completed it will feature a dog park along with walking trails. The nice part is the apartments are solar powered. I know someone who lives in them and his electric bill is $30 a month which is just transmission cost.
http://www.summerbridgeapartments.com/
http://www.
sevengablescarlisle.com