Alor is the largest island in the Alor Archipelago and is one of the 92 officially listed outlying islands of Indonesia. It is located at the eastern end of the Lesser Sunda Islands chain that runs through southeastern Indonesia, which from the west include such islands as Bali, Lombok, Sumbawa, Komodo, and Flores.
Anambas Islands Regency is an island regency in the Riau Islands Province, Indonesia, located in the Natuna Sea. The regency consists of 255 islands, including five outer islands that are important for Indonesia's sovereignty boundaries, namely: Tokong Berlayar Island, Tokong Nanas Island, Mangkai Island, Damar Island, and Malangbiru Island. Anambas Islands Regency located 150 nautical miles northeast of Batam Island in the Natuna Sea between the Malaysian Peninsula to the west and the island of Borneo to the east. Geographically part of the Tudjuh Archipelago. This island regency covers a land area of approximately 661.47 square kilometres (255.39 sq mi) spread over an area of approximately 46,664 km² of water. The regency had a population of around 37,411 at the 2010 Census. and 47,402 at the 2020 Census; the official estimate as at mid 2023 was 50,140. The administrative centre is at Tarempa on Siantan Island.
The Lingga Regency is a group of 600 islands in Indonesia, located south of Singapore and along both sides of the equator, off the eastern coast of Riau Province on Sumatra island. They are due south of the populated Riau Archipelago, known for the industrial island of Batam and the tourist-frequented island of Bintan, although the Lingga Islands themselves are rarely visited due to the infrequent local transportation. The equator goes through the northern tip of Lingga Island, the main island in the archipelago.
Pantar is the second largest island in the Indonesian Alor Archipelago, after Alor. To the east is the island of Alor and other small islands in the archipelago; to the west is the Alor Strait, which separates it from the Solor Archipelago. To the south is the Ombai Strait, and 72 kilometres (45 mi) away, the island of Timor. To the north is the Banda Sea. Pantar is about 50 kilometres (31 mi) north-to-south, and varies from 11 to 29 kilometres in east–west width. It has an area of 776.12 square kilometres (299.66 sq mi). The main towns on the island are Baranusa and Kabir. Administratively, the island is part of the Alor Regency.
Solor is a volcanic island located off the eastern tip of Flores island in the Lesser Sunda Islands of Indonesia, in the Solor Archipelago. The island supports a small population that has been whaling for hundreds of years. They speak the languages of Adonara and Lamaholot. There are at least five volcanoes on this island which measures only 40 kilometres by 6 kilometres. The island's area is 226.25 square kilometres, and it had a population of 34,029 at the 2020 Census. The official estimate as at mid 2023 was 35,929.
Sikka is a regency within East Nusa Tenggara province, Indonesia, on the island of Flores. It is bordered to the west by Ende Regency and to the east by East Flores Regency. It covers an area of 1,675.36 km2 and had a population of 300,301 at the 2010 census and 321,953 at the 2020 Census; the official estimate as at mid 2023 was 337,011. The capital is the town of Maumere, which comprises the districts of Alok Barat, Alok and Alok Timur.
Ende Regency is a regency on the island of Flores, within East Nusa Tenggara Province of Indonesia. The regency covers an area of 2,091.19 km2, and it had a population of 260,605 at the 2010 Census and 270,763 at the 2020 Census; the official estimate as at mid 2023 was 280,328. It is bordered to the west by Nagekeo Regency and to the east by Sikka Regency, while the Flores Sea lies to the north and the Savu Sea to the south.
Maumere is the administrative seat of the Sikka Regency and the second largest town on Flores Island, Indonesia. It lies on the north coast of the island and the port is in the north-west part of the town. Administratively the town is not a single district (kecamatan) within the regency, but is divided into three districts – Alok Barat, Alok and Alok Timur – although the latter two districts also include a number of substantial islands off the north coast of Flores.
Lebak Regency is a regency of Banten province, Indonesia. It is located on the island of Java. The regency has an area of 3,481.35 km2 and had a population of 1,204,095 at the 2010 census and 1,386,793 at the 2020 census; the official estimate as at mid 2023 was 1,480,593. The town of Rangkasbitung in the north of the regency is the administrative centre. The regency is bordered by the Pandeglang Regency to the west, the Serang Regency to the north, and the Tangerang Regency to the north-east, by the Bogor and Sukabumi regencies to the east, and by the Indian Ocean to the south.
Pandeglang Regency is a regency of Banten province, Indonesia. It is mainly located on the west and south coasts of the island of Java and is the most westerly regency on Java Island, but it also includes several offshore islands such as Panaitan, Peucang, Deli and Tinjil. It is bounded by Serang Regency to the north, Lebak Regency to the east, the Java Sea to the south, and the Sunda Strait to the west. The regency has a land area of 3,053.13 km2, and a population at the 2010 Census of 1,149,610, rising to 1,272,687 at the 2020 Census; the official estimate as of mid-2023 was 1,391,056. The regency seat is the town of Pandeglang in the northeast of the regency, but the most densely-populated district outside of the northeast agglomeration is the town of Labuan on the west coast.
Kalabahi is a town on Alor Island and it is the capital of Alor Regency in East Nusa Tenggara province of Indonesia. The town possesses the only puskesmas available in Teluk Mutiara District, in west Kalabahi.
The Karimun Regency is located in the Riau Islands Province, Indonesia. Besides the central island of Great Karimun, the regency also includes the island of Kundur and over 240 lesser islands. The district covers a land area of 1,339.9 km2 and a sea area of 6,460 km2, and its population was 212,561 at the 2010 census and 253,457 at the 2020 census; the official estimate as at mid 2023 was 270,121.
Nias Selatan Regency is a regency in North Sumatra province, Indonesia, created on 25 February 2003 by the division of the existing Nias Regency. The regency covers a land area of 2,487.99 square kilometres and according to the 2010 census had a population of 289,708; the 2020 Census showed a population of 360,531, while the official estimate for mid 2023 was 368,834. Its administrative centre is the port of Teluk Dalam. Apart from the southern portion of Nias Island, the regency also includes the smaller Batu Islands to the south, lying between Nias and Siberut; these islands occupy nearly half of the land area of the Regency, but have just 9% of its population.
West Manggarai Regency is one of the eight regencies which comprise the island of Flores, located in the province of East Nusa Tenggara in Indonesia. The Regency was created on 25 February 2003 by the separation off of the western districts from Manggarai Regency. It covers a land area of 3,141.47 km2, and had a population of 221,703 at the 2010 census, rising to 251,689 at the 2015 Intermediate census and to 256,317 at the 2020 census. The official estimate as at mid 2023 was 278,184. The regency's capital is the town of Labuan Bajo.
East Flores Regency is a regency in East Nusa Tenggara province of Indonesia. Established in 1958, the regency has its seat (capital) in Larantuka on Flores Island. It covers a land area of 1,812.65 km2, and it had a population of 232,605 as of the 2010 census and 276,896 at the 2020 Census; the official estimate as of mid-2023 was 289,376. The regency encompasses the eastern tip of the island of Flores, together with all of the adjacent islands of Adonara and Solor to the east of Flores, with some much smaller offshore islands. On 4 October 1999, the island of Lembata at the eastern end of the Solor Archipelago was separated from the East Flores Regency to create its own Regency.
Manggarai Regency is a regency in East Nusa Tenggara province of Indonesia, situated on the island of Flores. Established in 1958 to encompass the 6,924.18 km2 area of the lands of the indigenous Manggarai people, the regency was reduced in area and in population by the separation of the more western districts to form West Manggarai Regency on 25 February 2003 and of the more eastern districts to form East Manggarai Regency on 17 July 2007.
Lembata Regency is a regency in East Nusa Tenggara province of Indonesia. Established on 4 October 1999 from the most easterly part of East Flores Regency, the regency covers the island of Lembata, together with three small offshore islands together forming the eastern part of the Solor Archipelago, and has its administrative seat (capital) in Lewoleba. The population of the Regency was 117,829 at the 2010 decennial census and at the 2020 census was 135,930; the official estimate as at mid 2023 was 137,812.
East Manggarai Regency is a regency in East Nusa Tenggara province of Indonesia. Established on 17 July 2007, the regency has its seat (capital) in the town of Borong. It covers a land area of 2,438.68 km2. The population at the 2010 Census was 252,754, and at the 2020 Census was 275,603; the official estimate as at mid 2023 was 310,822.
Meranti Islands is an archipelago, most of which forms a regency (kabupaten) of Riau Province and lies off the eastern coast of the island of Sumatra, Indonesia. It was created on 19 December 2008 by the separating of these large islands from the mainly mainland regency of Bengkalis. The regency comprises the islands of Tebing Tinggi, Rangsang, Padang, and Merbau, together with minor offshore islands, but does not include Bengkalis Island to the north, which is geographically part of the archipelago but remains within Bengkalis Regency. The principal town is Selat Panjang on Tebing Tinggi Island. The regency covers an area of 4,769.53 km2 and had a population of 176,290 at the 2010 Census and 206,116 at the 2020 Census; the official estimate as of mid-2023 was 211,611.
West Kotawaringin Regency is one of the thirteen regencies which comprise the Central Kalimantan Province on the island of Kalimantan (Borneo), Indonesia. It originally comprised the whole western part of the province, having been split from a single Kotawaringin Regency on 26 June 1959 into separate regencies for West and East Kotawaringin, but on 10 April 2002 the most westerly districts of West Kotawaringin were split off to form the new Lamandau Regency and Sukamara Regency. The residual West Kotawaringin Regency has a land area of about 10,816.56 km2, and its population was 235,803 at the 2010 Census and 270,388 at the 2020 Census; the official estimate as at mid 2023 was 280,812. The large town of Pangkalan Bun in Arut Selatan District is the capital of West Kotawaringin Regency.
Indonesia 
East Nusa Tenggara 
