Boon Lay is a planning area situated in the West Region of Singapore. It shares boundaries with the planning areas of Pioneer to the west, Jurong West to the north, Jurong East to the east and Jurong Strait to the south.
The Boon Lay Planning Area is distinct from the Boon Lay subzone, which lies within the neighbouring planning area of Jurong West. Together with adjacent Pioneer, the Boon Lay Planning Area forms part of the broader Jurong Industrial Estate.
The Boon Lay Planning Area is located along the southwestern coast of the Singapore mainland and to the north of Jurong Island.
Included as part of the territory of Boon Lay Planning Area is Pulau Samulun, a minor island off Singapore's southwestern coast and connected to the mainland via Jalan Samulun.
As defined by the Urban Redevelopment Authority, Boon Lay Planning Area is officially divided into 4 subzones: