The Mentawai Islands Regency is a regency of West Sumatra Province which consists of a chain of about a hundred islands and islets approximately 150 kilometres off the western coast of Sumatra in Indonesia. They cover a land area of 6,033.76 km2 and had a population of 76,173 at the 2010 Census and 87,623 at the 2020 Census; the official estimate as of mid-2023 was 95,068.
Anambas Islands Regency is a small archipelago of Indonesia, located 150 nautical miles northeast of Batam Island in the North Natuna Sea between the Malaysian mainland to the west and the island of Borneo to the east. Geographically part of the Tudjuh Archipelago, it is administratively a regency within the Riau Islands Province. It covers a land area of 661.47 square kilometres (255.39 sq mi) and had a population of 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.
Bengkalis Regency is a regency of Indonesia in Riau Province. The regency was originally established in 1956 and then included most of the northern part of the province, but on 4 October 1999 it was divided up, with most of the territory being split off to form the new Rokan Hilir Regency, Siak Regency and the city of Dumai. On 19 December 2008 a further five districts were removed to create the new Meranti Islands Regency, leaving eight districts in the Bengkalis Regency. These eight districts has increased since 2010 to eleven by the splitting of existing districts on the Sumatran mainland.
Deli Serdang is a regency in the Indonesian province of North Sumatra. It surrounds the city of Medan, and also borders to the west the city of Binjai, which is effectively a bedroom community for Medan. The entire regency lies within the Medan metropolitan area. It occupies an area of 2,502.16 km2. The capital of the district is Lubuk Pakam, which is located approximately 30 km east of Medan. The national census of 2000 recorded 1,573,987 people, but by 2010 the regency's population increased by 13.76% to 1,790,431, and at the 2020 Census the total was 1,931,441. The official estimate as at mid 2023 was 2,015,429. Kualanamu International Airport is located in this regency, 23 kilometres east of downtown Medan.
Ende is the seat capital of the Ende Regency, East Nusa Tenggara province of Indonesia. Ende is located on the southern coast of Flores Island. The town had a population of 87,269 residents at the 2020 census, divided administratively between four districts (kecamatan) of the regency – Ende Selatan, Ende Timur, Ende Tengah, and Ende Utara. Note that this does not include Ende District or Pulau Ende District. The official estimate as at mid 2023 was 87,723.
Dumai, is a coastal city in Riau Province on the island of Sumatra, Indonesia, about 188 km from Pekanbaru, the provincial capital. The city has an area of 2,065.59 km2 and had 338,064 inhabitants at the mid 2023 official estimate. Dumai has a domestic airport, Pinang Kampai Airport. The city is an important transport and trade centre, both regionally and internationally, especially for traffic to and from Malaysia. The region is rich in oil.
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.
Sukabumi Regency is a regency (kabupaten) in southwestern Java, as part of West Java province of Indonesia. The regency seat is located in Palabuhan Ratu, a coastal district facing the Indian Ocean. The regency fully encircles the administratively separated city of Sukabumi. Covering an area of 4,164.15 km2, the regency is the largest regency in West Java and the second largest regency on Java after the Banyuwangi Regency in East Java. The regency had a population of 2,341,409 at the 2010 census and 2,725,450 at the 2020 census; the official estimate as at mid 2023 was 2,802,404, with a large proportion of it living in the northeastern part of the regency that encircles Sukabumi City, south of Mount Gede. A plan to create a new regency, the putative North Sukabumi Regency, was considered by the Indonesian government in 2013, but has been deferred until the end of the current morotorium on new creations of regencies.
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.
Kampar is a regency (kabupaten) of Riau Province of Indonesia. The regency formerly included a much larger part of Riau Province, but on 4 October 1999 the western districts were split off to form a separate Rokan Hulu Regency, and the eastern districts were split off to form a new Pelalawan Regency. It now has an area of 12,481 km2 and had a population of 688,204 at the 2010 Census, and 841,332 at the 2020 Census; the official estimate as at mid 2023 was 860,379. The administrative centre of the regency is located at the town of Bangkinang.
Bintan Regency is an administrative area in the Riau Islands Province of Indonesia. Bintan Regency includes all of Bintan Island and also includes many outlying islands including the Tambelan Archipelago and Badas Islands situated between Bintan and West Kalimantan; altogether there are 273 islands comprising the regency.
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.
North Nias Regency is located on Nias Island in the North Sumatra province of Indonesia. The regency was created on 29 October 2008 from several districts that had previously been part of Nias Regency. It occupies the northern portion of Nias Island and has an area of 1,520.54 square kilometres (587.1 sq mi). At the 2010 census, it had a population of 127,244, and 147,274 at the 2020 census; the official estimate at mid 2023 was 153,005. The regency's administrative capital is Lotu.
Ngada Regency is one of the regencies on the island of Flores, East Nusa Tenggara Province, Indonesia. It is bordered by East Manggarai Regency to the west and Nagekeo Regency to the east, with the Flores Sea to the north and the Sawu Sea to the south. The Regency, which covers an area of 1,620.92 km2, had a population of 142,254 at the 2010 census, which increased to 165,254 at the 2020 census; the official estimate as at mid 2023 was 171,174. The town of Bajawa is the capital of Ngada Regency.
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.
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.
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 
