4612 is the Census Tract of the central East section of Altadena bordered on the west by Lake Avenue; along a line which traverses Mendocino Street on the north continuing across Allen along Glen Terrace Street to Midlothian Street at Glen Canyon and across Glen Canyon to Altadena Drive; the unincorporated boundary approximated by Eaton Canyon and Altadena Drive on the east; and by New York Drive on the south.