Shandonger

He ridiculed the ignorance of party officials, referring to them disparagingly as "this bunch of Shandongers" and so forth, who "don't know anything but live off the [Communist] party."

Source: wiktionary

We can divide 1.3 billion people into different groups, say, geographically into thirty groups such as Henaners, Hebeiers, Shandongers, Shanxiers, Beijingers.

Source: wiktionary

The internal forces, "famine, unrest, and overpopulation [...] summarized the hostile living environment, which trapped most Shandongers in abject poverty".

Source: wiktionary

As I am a Shandonger, notorious for their stubborn northern accent, the comment I often received was 'How come you don't have an accent?'

Source: wiktionary