Pizza and demographics aren’t normally thought of together, but I chanced upon a year-old Gawker blog post by Max Read which invites demographic analysis. Read, writing perhaps tongue-in-cheek, identifies what he calls the Official Pizza Belt, defined as “the area of the United States where the chance of obtaining an adequate-to-good slice of pizza from a randomly chosen pizzeria is greater than 50 percent.” It runs from Providence, R.I., sweeping through all of Connecticut, all of New York south of Franklin Roosevelt’s Hyde Park, all of New Jersey, metro Philadelphia in Pennsylvania and reaching to the far northeastern edge of Delaware.

If you reduce the chances to one in three, Read writes, the Greater Pizza Belt extends northward to Boston and Albany, N.Y., and southwest to D.C.