Is there such a thing as a Home Town?

I was asked an interesting, and bothersome, question today: "What is your hometown?". Huh. I'm not sure how to answer that. Born in San Francisco, but only there for one year. Then lived in Columbia, Missouri but gone by the age of 3 or 4. Raised, as it were, in Fond du Lac, Wisconsin. But we spent many weekends in 'the city': Chicago, Illinois. (I'm clinging hard to the fact that Mom and Dad did technically own a co-op there). Then, Chicago proper in my late teens and early twenties. (And don't forget a year in boarding school in Lake Forest, IL, but then I'd also have to count that boarding school year in Beaver Dam, Wi too.) And as an adult, it's back to Wisconsin, Madison this time (but it's an island unto itself, does that count?). Then off to Savannah, Georgia for nearly five years. Two years in Antibes, France and now I find myself in Portland, Oregon. Did I miss anywhere? I considered this hometown question very carefully because the reply is going to be IN PRINT. The pressure. I settled on Chicago, because that's were I feel most at home. I gave my sister a hard time once for listing Chicago (instead of Fond du Lac) on her college graduation program, but now I think I understand---do you really want the world to think of you as hailing from a place where the local paper has a Big Buck Club photo feature??