[Docere]

Among the big metro areas, New York is the only one where Italian Americans are the largest white ancestry group. Most suburban counties are 20%+ Italian American. This must have some impact on the culture of the region.

Even in famously "Italian" Philadelphia, this isn't the case. Irish and German ancestry is more common than Italian. The South Jersey part is more Italian than the PA side; Gloucester County NJ looks like a typical NYC area county in its Italian American share.

Among smaller cities, Italian is the most common ancestry in Providence and New Haven. And both have sort of "Italian" images (Providence for its Little Italy, New Haven for its pizza).