16,800 (2006 IMB).
Kerala, Idukki district, Devikulam tahsil, Devikulam and Adimali blocks; Kozhikode, Kannur, Ernakulam, Kottayam, and Thrissur districts; Tamil Nadu, Coimbatore district, Udumalpet and Valparai tahsils, Anaimalai hills; Madurai district, Cardamom hills; Andhra Pradesh.
Western Muthuvan (Malayalam Muthuvan, Nattu Muthuvan), Eastern Muthuvan (Pandi Muthuvan, Tamil Muthuvan). Intelligibility 82%–87% between dialects, eastern dialect more intelligible to western than vice versa, 80% intelligibility of Malayalam [mal]. Lexical similarity: 77%–88% between dialects, 62%–67% with Tamil [tam], 58%–68% with Malayalam [mal].
A Scheduled Tribe. Hindu.