Keith, the Greater Toronto Area (GTA) has _five_ Chinatowns: Downtown, Downtown East, Scarborough/Agincourt (the suburbs), and just over the city limits, in the neighboring cities, Mississauga and Markham. The further from downtown, the higher the income level.
In the same way, the GTA has three Italian districts, St. Clair/Dufferin (downtown), Weston/Sheppard (suburban), and Woodbridge (just out of town). Is it the same in your town? Anyone from Toronto should feel free to correct me if I'm out of date. Pat White