The Madanu surname is the 203,306th most common surname globally, with its highest concentration found in India. Research indicates approximately 1,986 bearers of the surname within India, with a strong presence in specific southern states, and smaller diaspora communities in several countries around the world.
The most significant diaspora presence appears to be in the United States and, interestingly, in the Democratic Republic of Congo, though exact numbers in these regions are smaller. This global distribution reflects patterns of migration for education, work, and religious service over the past century.