 Based on per capita income, one of the more reliable measures of affluence, Brush Prairie ranks 57th of 522 areas in the state of Washington to be ranked.Brush Prairie is located southwest of the center of Clark County at (45.728934, -122.542143).It is bordered by Meadow Glade and Battle Ground to the north, Hockinson to the east, Orchards and Five Corners to the south, and Barberton to the west.