Nunukan Regency Kabupaten Nunukan
Regency
Coat of arms
Motto(s):  Penekindi Debaya (Building Regions)
Location withinNorth Kalimantan
Nunukan Regency Location inKalimantan andIndonesia Show map of Kalimantan Nunukan Regency Nunukan Regency (Indonesia) Show map of Indonesia
Coordinates:4°3′34″N117°40′1″E / 4.05944°N 117.66694°E /4.05944; 117.66694
Country	Indonesia
Province	North Kalimantan
Capital	Nunukan
Government
• Regent	Asmin Laura Hafid
• Vice Regent	Faridil Murad
Area
• Total	14,247.50 km2 (5,500.99 sq mi)
Population  (mid 2023 estimate)
• Total	217,923
• Density	15/km2 (40/sq mi)
	[1]
Time zone	UTC+8 (ICST)
Area code	(+62) 556
Website	nunukankab.go.id

Nunukan Regency is aregency ofNorth Kalimantan Province inIndonesia. It was created on 4 October 1999 from the northern districts ofBulungan Regency. Nunukan Regency sharesinternational borders with theMalaysian states ofSabah to the north andSarawak to the west, and inter-regency borders withTana Tidung Regency andMalinau Regency to the south, as well as the coastal city ofTarakan in the east. The regency covers an area of 14,247.50 km² and it had a population of 140,841 at the 2010 census^[2] and 199,090 at the 2020 census;^[3] the official estimate as at mid 2023 was 217,923 (comprising 115,669 males and 102,254 females).^[1]

Nunukan is also the name of anisland within this regency. It has an area of 226 km². Nunukan town, the capital of the regency, is located on Nunukan Island, which comprises the insular section of Nunukan District (which also includes part of the 'mainland' of Kalimantan) and the whole of the separate Nunukan Selatan District. It is a major port for ferry crossings toTawau inSabah state,Malaysia.

North of Nunukan Island isSebatik Island, which is split in two by a straight east-west line across the centre of the island. The northern part lies inMalaysia and the southern half within Indonesia. The Indonesian portion has an area of 246.61 km² and had a population of 47,571 at the 2020 census,^[3] comprising five of the regency's districts.

At the 2010 census, the regency was divided into ninedistricts (kecamatan), but subsequently another twelve new districts have been created by the division of existing regencies. All these are tabulated below with their areas and their populations at the 2010 census^[2] and the 2020 census,^[3] together with the official estimates as at mid 2023.^[1] The table also includes the locations of the district administrative centres, the number ofadministrative villages in each district (a total of 232 ruraldesa and 8 urbankelurahan - the latter comprising 4 each in Nunukan District and Nunukan Selatan District), and its postal codes.

Notes: (a) the 2010 population figures given for Krayan District and Krayan Selatan District include the populations of the three most recently created districts (Krayan Selatan District included the new Krayan Tengah District, while Krayan District included the new Krayan Timur and Krayan Barat Districts. The Apokayan region (i.e. all the first five districts listed above) comprises the entire western section of the Regency, separated from Malaysia by the meanderingKayan River.
(b) the 2010 populations of Lumbis Ogong District, Lumbis Pansiangan District and Lumbis Hulu District are included in the figure for Lumbis District, from which they were split.
(c) the 2010 population of Sembakung Atulai District is included in the figure for Sembakung District, from which it was split.
(d) the 2010 populations of Tulin Onsoi District and Sei Menggaris District are included in the figure for Sebuku District, from which they were split.
(e) Nunukan District comprises the western half ofNunukan Island (including the town ofNunukan), together with adjacent areas on the 'mainland' of Kalimantan. It consists of 4kelurahan (Nunukan Barat, Nunukan Tengah, Nunukan Timur and Nunukan Utara) and thedesa of Binusan.
(f) Nunukan Selatan District comprises the eastern half of Nunukan Island. It consists of 4kelurahan (Mansapa, Nunukan Selatan, Selisun and Tanjung Harapan).
(g) Sebatik District comprises a southeast portion ofSebatik Island, while Sebatik Barat District comprises a southwest portion (the northern half of this island is part of MalaysianNorth Borneo, as the international boundary divides this island in two).
(h) Since 2010, three additional districts have been created on (the Indonesian portion of) Sebatik Island - Sebatik Timur, Sebatik Tengah and Sebatik Utara - by the division of existing districts. The populations in these districts in 2010 are included with the figures for Sebatik Barat District and Sebatik District.

Nunukan town, the seat of the regency has atropical rainforest climate (Af) with moderate rainfall in January and February and heavy rainfall in the remaining months.

4°3′34″N117°40′1″E / 4.05944°N 117.66694°E /4.05944; 117.66694

• Regencies of North Kalimantan
• States and territories established in 1999
• Sesayap basin

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