Midalam is located at . It has an area of 4 km2 and average elevation of 37 m (121 ft). Midalam Census Town has total administration over 2,204 houses to which it supplies basic amenities like water and sewerage. It is also authorize to build roads within Census Town limits and impose taxes on properties coming under its jurisdiction. It belongs to Killiyur legislative assembly, the 234th constituency of Tamil Nadu and under the Padmanabhapuram division. It belongs to Vilavancode Tehsil of Kanniyakumari district in Tamil Nadu, India. Vilavancode is the nearest town to Midalam village. Midalam is surrounded by Munchirai Block towards north, Thuckalay Block towards east, Kurunthancode Block towards east, Thiruvattar Block towards north. There is one UNESCO world heritage site nearby. It is the Western Ghats at a distance of 34 km north.
