I don’t know. But I do know what Google searches are geographically correlated with searches for “Hanukkah,” and it includes “Chinese food.”
Here are the maps:
The map looks close to the Jewish population map from the 2010 U.S. Religion Census (a private outfit).
Here are the top-100 most Hanukkah-like searches, in the obvious categories: Religious/cultural, Howard Stern, Food, Travel and People.