What is the setting (where and when the story takes place) in Diary of a Wimpy Kid?

The setting of the story is a fictitious American suburb, a relatively affluent and secure place that provides (or should provide) a safe living environment for children to grow up in. For most kids in the neighborhood, this is naturally a good thing—but not for Greg. As the basics of his life are pretty much taken care of, he's free to sweat the small details, including relatively trivial matters such as social status and making friends at school.
In the overall scheme of things, these aren't issues you should really worry about, but to a kid like Greg they're everything. They define his whole existence in the comfortable middle-class world he inhabits. Suburban life places a high premium on fitting in, and the problem for Greg is that he just doesn't fit in anywhere. A socially awkward, self-described wimpy kid who isn't any good at sports, Greg is genuinely worried as to how he'll adapt to his new school. At least the suburban neighborhood in which he lives can provide him with some degree of anonymity. But at school it's a different story; here, there's nowhere to hide.