Tobi, or Hatohobei (Tobian), is the southernmost of Palau's sixteen states, consisting of Tobi Island and Helen Reef. The total land area is about 0.88 km². The population was 25 in 2015. Tobian, English, and Sonsorolese are the official languages of Hatohobei State.
Not only is it Palau’s least populous state, but it is the least populous first-level administrative subdivision in the world as well as being the 13th smallest first level administrative subdivision .
The Micronesians or Micronesian peoples are various closely related ethnic groups native to Micronesia, a region of Oceania in the Pacific Ocean. They are a part of the Austronesian ethnolinguistic group, which has an Urheimat in Taiwan.
Ethno-linguistic groups classified as Micronesian include the Carolinians (Northern Mariana Islands), Chamorros (Guam & Northern Mariana Islands), Chuukese, Mortlockese, Namonuito, Paafang, Puluwat and Pollapese (Chuuk), I-Kiribati (Kiribati), Kosraeans (Kosrae), Marshallese (Marshall Islands), Nauruans (Nauru), Palauan, Sonsorolese, and Hatohobei (Palau), Pohnpeians, Pingelapese, Ngatikese, Mwokilese (Pohnpei), and Yapese, Ulithian, Woleian, Satawalese (Yap).
Tobi is an island in the Palauan state of Hatohobei. Tobi Island is 1.6 km long and 0.8 km wide, and has an area of about 0.85 square kilometres (0.33 sq mi). With a population of 39 according to a 2020 census, it holds all of the state's people, with the exception of a weather base on Helen Island. Most of the inhabitants live on the island's west side and speak Tobian.
Tobi, Helen Reef (Hotsarihie), Transit Reef (Pieraurou), and the islands in the state of Sonsorol make up the Republic of Palau's Southwest Islands.
Tobian (ramarih Hatohobei, literally "the language of Tobi") is the language of Tobi, one of the Southwest Islands of Palau, and the main island of Hatohobei state. Tobian is a Micronesian language spoken by approximately 150 people, about 22 are native speakers. The speakers are located in either the island of Tobi or in Echang, a hamlet of Koror, the former capital of Palau. Tobian and Sonsorolese are very close, and appear to be gradually merging towards a new dialect called "Echangese". Earlier in the 20th century, about 1000 people lived on the island. Shortly before and during the First World War, those numbers dropped severely due to an abundance of disease.