What is the main setting in the novel, Onion John?

Onion John is set in the late 1950s in the quiet rural town of Serenity, near the Munkachunk Mountains and Musconetty Creek. This fictional community is patterned after Belvidere, New Jersey, a county seat near Krumgold's home with a population of about twenty-six hundred. This area, which was once settled by German Moravians, is near the edge of the Poconos Mountains.