ISO 639-3: mrl
||5,900 (1989 census). 1,692 Upper Mortlock, 1,757 Mid Mortlock, 2,455 Lower Mortlock, about 1,000 elsewhere.
||Mortlock Islands, southeast of Truk, Caroline Islands. Lower Mortlock on Ponape Island.
Federated States of Micronesia
||Upper Mortlock, Mid Mortlock, Lower Mortlock. 75% intelligibility with Puluwatese [puw], 18% with Satawalese [stw], 8% with Woleaian [woe]. Lexical similarity: 80%–85% with Chuukese [chk], 83% with Puluwatese, 82% with Satawalese, 81% with Carolinian [cal], 78% with Woleaian, 72% with Ulithian [uli].
||Austronesian, Malayo-Polynesian, Central-Eastern, Eastern Malayo-Polynesian, Oceanic, Central-Eastern Oceanic, Remote Oceanic, Micronesian, Micronesian Proper, Ponapeic-Trukic, Trukic