Keelkulam, also spelt Kilkulam, is situated in Kanyakumari District, Tamil Nadu. The place spans over an area of about five sq km. Mulagumudu is situated in the north-west, Villukuri in the south-east, Eraniel in the south, Balapallam in the south-west and Thalakudi in the east. Colachel Port, Kanyakumari, Padmanabhapuram Palace, Sanguthurai Beach, Manavalakurichi, Muttam and Nagercoil are nearby tourist spots.
The nearest airport is Trivandrum International Airport. Eraniel Railway Station serves the town. Nagercoil Junction Railway Station is the nearest major railhead. Keelkulam can be approached by road from Nagercoil. National Highway 47 passes through the town.