Districts of Tamil Nadu with complete details on area (km²), population, map, and headquarters. Check the updated list including the largest and smallest districts by size and population. New List of Districts in Tamil Nadu Tamil Nadu is a southern state in India, located on the southeastern coast of the country. It is known for its rich cultural heritage, ancient temples, beautiful beaches, and delicious cuisine. Tamil Nadu is the eleventh largest state in India by area and the sixth most populous state. The state capital is Chennai, which is also the largest city in Tamil Nadu. Find out the number, names, areas, populations, and other demographics of the 38 districts in Tamil Nadu. See the district map and compare the largest and smallest districts by various criteria. Districts of Tamil Nadu List, Map, Names, Total Area There are a total of 38 Tamil Nadu districts. Know more about all the districts of Tamil Nadu State and its important facts in this article for government exams.