In heraldry, a compartment is a design placed under the shield, usually a landscape or wreath of some sort upon which the supporters are depicted as standing. It is a comparatively late feature of heraldry.
Usually when arms are augmented by supporters, a compartment will be added too.
... Demographics
As of the census of 2000, there are 468 people, 158 households, and 121 families residing in the town. The population density is 19.9/km² ...