19,000 (2003 SIL).
East Mekeo, Ninikani, North Mekeo, Northwest Mekeo (Kovio), West Mekeo. Dialects mutually unintelligible, except North and West Mekeo, but most Mekeo are reportedly familiar with neighboring dialects. Kovio not contiguous and is peripheral to other dialects. Lexical similarity: 81% between Kovio dialect and West Mekeo and North Mekeo dialects, 79% with East Mekeo, 87% between East and West Mekeo dialects.
Above average education level.