The Mimico "neighbourhood planning area" starts at the Humber River to the east, its northern boundary being the Gardiner Expressway as far west as the CPR north-south railway line west of Kipling Avenue. The western boundary follows the CPR railway line south to the CNR railway line. The western boundary then continues along the CNR railway line to Dwight Avenue, then south along Dwight Avenue to Lake Ontario. This planning area includes part of the former Township of Etobicoke (including parts of Humber Bay and Alderwood), and are used for planning purposes (which also match the census tracts for that area). This planning area also includes the recent Humber Bay Shores condominium developments along Lakeshore Boulevard West east of Mimico at the former "Motel Strip" area of Humber Bay, as well as the industrial areas along the rail lines to the west and an area to the north, all of which comprised part of the Township of Etobicoke.