Simeulue Regency () is a regency in the Aceh special region of Indonesia. It occupies the whole island of Simeulue (Pulau Simeulue), 150 km off the west coast of Sumatra, with an area of . It had a population of 80,674 at the 2010 census and 92,865 at the 2020 census; the official estimate as at mid 2021 was 93,762. With its isolated geographic location and its linguistic difference from mainland Aceh, Simeulue has not been affected by the turmoil of conflicts in mainland Aceh between the Indonesian government and the Free Aceh Movement (GAM). There has been no major GAM activity on the island. Administration Simeulue was once a part of West Aceh Regency but was split off in 1999 with the hope that the region's development would improve. The seat of the regency is Sinabang. The regency was divided at 2010 into eight districts (kecamatan), but two additional districts were created in 2012. All are listed below with their areas and their populations at the 2010 census and 2020 census, together with the official estimates as at mid 2021. The table also includes the locations of the district administrative centres, the number of villages (rural desa and urban kelurahan) and the number of offshore islands (of which just two are inhabited) in each district, and its post code. Notes: (a) of which the island of Pulau Siumat is inhabited. (b) of which the island of Pulau Teupah is inhabited. (c) The 2010 population of the Teupah Tengah District is included in the figure for the Simeulue Timur District, from which it was cut out in 2012. (d) The 2010 population of the Simeulue Cut District is included in the figure for the Simeulue Tengah District, from which it was cut out in 2012. Villages Administrative villages (desa) listed for each district: Demographics The people of Simeulue are similar to the people in the neighboring Nias Island, speaking 3 languages (Devayan, Sigulai and Leukon) which are distinctly different from the languages spoken in mainland Aceh. The vast majority (99.7% in 2020) of the people of Simeulue are Muslim. Earthquakes Simeulue was close to the epicenter of the 9.3 magnitude 26 December 2004 earthquake, but loss of life was surprisingly low, mainly because the people are familiar with earthquakes and tsunamis in this seismically active region and so knew to leave the coast after the earthquake. A major earthquake and