Siak (Jawi: ) is a regency (kabupaten) of Riau Province, on the island of Sumatra, Indonesia. It has an area of 7,803.57 km2 and had a population of 376,742 at the 2010 CensusBiro Pusat Statistik, Jakarta, 2011. and 457,940 at the 2020 Census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2025 was 507,729 (comprising 260,571 males and 247,158 females).Badan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Siak Dalam Angka 2026 (Katalog-BPS 1102001.1405) The administrative centre of the regency is located at Siak Sri Indrapura in Mempura District . The northern part of this regency contains a large part of the Bukit Batu Biosphere Reserve.
Previously the area was part of the Sultanate of Siak Sri Indrapura. At the beginning of the independence of Indonesia, Sultan Syarif Kasim II, the Sultanate of Siak was the last state to join the Republic of Indonesia. Later this region was included in an area under the Siak Kewedanan Bengkalis. On 4 October 1999 under Law No. 53 of 1999, a Siak Regency was established from what had previously been the southern districts of Bengkalis Regency, and Siak Sri Indrapura was declared the administrative capital of Siak Regency.
Administrative districts Siak Regency is divided into fourteen administrative districts (kecamatan), listed below with their areas and their populations at the 2010 Census and the 2020 Census, together with the official estimates as at mid 2025.Badan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Siak Dalam Angka 2026 (Katalog-BPS 1102001.1405) The table also includes the locations of the district administrative centres, the number of administrative villages in each district (a total of 122 rural desa and 9 urban kelurahan), and its post code.
Kode Wilayah Name ofDistrict(kecamatan) Area inkm2 Pop'nCensus2010 Pop'nCensus2020 Pop'nEstimatemid 2025 Admin centre No.ofvillagesPostcode 14.08.03 Minas 346.35 25,937 28,948 33,500Minas Jaya 5 (a) 28695 14.08.05 Sungai Mandau 1,493.65 7,232 9,128 12,078Muara Kelantan 9 28674 14.08.10 Kandis 894.17 57,762 74,727 82,754Telaga Sam Sam 16 (b) 28686 14.08.01 Siak (district) 1,346.33 21,891 31,144 36,057Kampung Dalam 8 (c) 28673 14.08.07 Kerinci Kanan 1,705.00 22,829 23,783 24,937Kerinci Kanan 12 28654 14.08.04 Tualang 128.66 104,163 120,655 126,605Perawang 9 (d) 28772 14.08.06 Dayun 155.09 26,545 30,959 35,334Dayun 11 28671 14.08.11 Lubuk Dalam 343.60 16,961 19,905 21,846Lubuk Dalam 7 28655 14.08.09 Koto Gasib 704.70 18,513 23,469 26,314Pangkalan Pisang 11 28672 14.08.13 Mempura 232.24 14,119 16,951 18,880Sungai Mempura 8 (e) 28773 14.08.02 Sungai Apit 151.00 25,012 30,997 34,236Sungai Apit 15 (f) 28662 14.08.08 Bunga Raya 437.45 20,939 26,777 30,668Bunga Raya 10 28764 14.08.12 Sabak Auh 73.38 9,798 12,911 14,436Bandar Sungai 8 28684 14.08.14 Pusako 544.47 5,041 7,586 9,084Dusun Pusaka 7 28765 Totals 8,556.09(g) 376,742 457,940 507,729Siak Sri Indrapura 136
Notes: (a) includes the kelurahan of Minas Jaya. (b) includes 3 kelurahan - Kandis Kota (with 14,087 inhabitants as at mid 2023), Simpang Belutu (with 9,036 inhabitants) and Telaga Sam Sam (with 8,958 inhabitants).Badan Pusat Statistik, Jakarta, 26 September 2024, Kecamatan Kandis Dalam Angka 2024 (Katalog-BPS 1102001.1405012) (c) includes 2 kelurahan - Kampung Dalam (with 8,074 inhabitants in mid 2023) and Kampung Rempak (with 8,772 inhabitants in mid 2023).Badan Pusat Statistik, Jakarta, 26 September 2024, Kecamatan Siak Dalam Angka 2024 (Katalog-BPS 1102001.1405020) (d) includes the kelurahan of Perawang. In this district, Perawang kelurahan had 36,066 inhabitants as at mid 2023, while the neighbouring desa of Perawang Barat had 32,960 inhabitants and Tualang desa had 18,569 inhabitants.Badan Pusat Statistik, Jakarta, 26 September 2024, Kecamatan Tualang Dalam Angka 2024 (Katalog-BPS 1102001.1405022) (e) includes the kelurahan of Sungai Mempura (with 4,110 inhabitants as at mid 2023).Badan Pusat Statistik, Jakarta, 26 September 2024, Kecamatan Mempura Dalam Angka 2024 (Katalog-BPS 1102001.1405026) (f) includes the kelurahan of Sungai Apit. (g) since revised (in 2025) to 7,803.57 km2, but no breakdown by district is yet available.
Transportation
Water From Pekanbaru, Siak can be reached by river from Pekanbaru's Port, There is usually a boat that operates every 4-5 times a week with a travel time of around 2–4 hours. In addition to Pekanbaru itself, this port also serves other destinations including Bengkalis, Selat Panjang, and Batam (via Buton Bengkalis).
Land
Other than by river, Siak can also be reached by road, From Pekanbaru which is about a 3 to 4 hour journey. In addition Siak has a bridge that connects Siak with its capital which is named Tengku Agung Sultana Latifah which is the name of a previous Sultan of Siak. This bridge was inaugurated on 11 August 2007 and was known as the longest bridge in Indonesia until 2010, until the construction of the Suramadu Bridge in Surabaya was finished.
Tourism
Tours of Siak include the Siak Sri Indrapura Palace, which is a historic palace of the Sultanate of Siak. The palace is very famous, many tourists visit to see the grandeur of the palace and the objects located within, such as the golden throne which belonged to the Sultan, the royal dining chairs and a Komet Music Box of which only one other remains in the world. This palace is open from 10 am to 4 pm.
Borders Heading Border North Bengkalis Regency South Kampar Regency and Pelalawan Regency West Kampar Regency and Pekanbaru East Bengkalis Regency and Pelalawan Regency
Notes
References
External links
Berita dan Informasi DINAS PARIWISATA PROVINSI RIAU