I would actually recommend Egg Harbor. My husband, three kids and I staying at The Landing Resort on the main drag, over the 4th of July and on New Years. VERY nice for only around 100 a night.
In the summer, there are many shops, beaches, and resteraunts all over Door County (preferably in the more nothern areas) that I'm sure you'd enjoy.
Penninsula State Park, 10 mi. north in Fish Creek has a great beach (although the past two yrs. we've gone the shore has been covered in alge, but once you get out about 5 feet it's fine) with a nice gift shop and snack shack. The Eagle Bluff lookout tower offers wonderful views & provides amazing sunset views. Penninsula is also great in the winter, with a giant sledding hill and cross country skiing. Our family camps in August there every year and look forward to it months before.
I hope this helped
