The setting of Frindle is Westfield, New Hampshire in the 1990's.
Most of the story takes place in Lincoln Elementary School. Westfield is a small town where not much happens. This is one of the reasons the “frindle” word for pen spreads so quickly. New Hampshire can be pretty boring, especially in the winter. Nick wants to make everything more interesting, at school and around town, by creating the new word. It even makes the town paper.
Westfield was a quiet little town. There was the occasional burglary, the teenagers got rowdy once in a while, and there was some shouting at the town council or the planning board now and then. (Ch 10, p. 57)
Since the town is so small, Mrs. Granger has had a huge impact on it. She has taught many of the students, and has taught long enough that many of the adults in the town were once her students. She is an institution.
The story takes place in a small, quiet, uneventful, and cold New Hampshire town called Westfield. In Westfield, everyone knows everyone, news spreads fast, and almost nothing is a secret. Significantly, it is also close to other small towns, which is how word of the frindle story spreads to Boston. The town is depicted as a community with strong roots in the past—a place where everyone from the school superintendent to Manny, the custodian, has a place.
Within Frindle, settings include the Penny Pantry store, Nick's comfortable family home, and Lincoln Elementary, which, unsurprisingly, is a major backdrop for the story. We learn that the school has 150 students in the fifth grade alone and that it is only six years old. Like the town, it has a strict social hierarchy.