Hello, Home Buying in 17033--not sure if you're still around and still interested in this question. I will be doing a blog post on this in the next several days, comparing Derry, Lower Dauphin, Central Dauphin, Palmyra and Cumberland Valley School Districts for a five year period. You are asking about zip code 17033, which is the "Hershey" zip code. However, you'll miss important info from that part of zip code 17036 that is part of Derry Township schools. If you would want a zip code specific search, please let me know.