Southeast Minahasa Regency is a regency in North Sulawesi, Indonesia. It covers a land area of 730.63 km2, and had a population of 100,443 at the 2010 Census;Biro Pusat Statistik, Jakarta, 2011. this had risen to 116,323 at the 2020 Census,Badan Pusat Statistik, Jakarta, 2021. and the official estimate as at mid 2025 was 122,954 (comprising 63,648 males and 59,306 females).Badan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Minahasa Tenggara Dalam Angka 2026 (Katalog-BPS 1102001.7109) It was established as a separate regency from the south-eastern part of the South Minahasa Regency on 2 January 2007.Undang-Undang Republik Indonesia Nomor 9 Tahun 2007 Its administrative centre is at the town of Ratahan (Ratahan is also a language spoken in the Regency).
Administrative districts The regency is divided into twelve districts (kecamatan), tabulated below with their areas and their populations at the 2010 CensusBiro Pusat Statistik, Jakarta, 2011. and the 2020 Census,Badan Pusat Statistik, Jakarta, 2021. together with the official estimates as at mid 2025.Badan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Minahasa Tenggara Dalam Angka 2026 (Katalog-BPS 1102001.7109) The table also includes the locations of the district administrative centres, the number of villages in each district (totaling 135 rural desa and 9 urban kelurahan - the latter all in Ratahan District), and its post codes.
Kode Wilayah Name ofDistrict(kecamatan) Areain km2 Pop'nCensus2010 Pop'nCensus2020 Pop'nEstimatemid 2025AdmincentreNo. ofvillagesPost code 71.07.04 Ratatotok (a)104.1812,11714,22715,381Ratatotok1595999 71.07.02 Pusomaen (b)53.638,2199,58310,138Tetengesan1595997 71.07.03 Belang (c)75.1715,22417,28618,108Belang2095992 71.07.01 Ratahan 61.6312,16413,72114,121Tosuraya11 (d) 95994 71.07.11 Pasan 49.796,5947,5707,874Liwutung1195993 71.07.12 Ratahan Timur (East Ratahan) 63.995,5486,1746,225Wioy1095995 71.07.05 Tombatu 67.959,00810,15110,649Betelen1195996 71.07.09 Tombatu Timur (East Tombatu) 18.818,4429,79510,150Molompar Dua1195990 71.07.10 Tombatu Utara (North Tombatu) 37.177,6748,9929,693Tombatu Dua1095991 71.07.06 Touluaan 101.806,2177,4198,161Ranoketang Atas1095981 71.07.07 Touluaan Selatan (South Touluaan) 52.764,0794,8785,262Kalait1095982 71.07.08 Silian Raya 43.755,1576,5277,192Silian Dua1095998 Totals 730.63100,443116,323122,954 Ratahan 144
Notes: (a) including 10 offshore islands. (b) including 9 offshore islands. (c) including 5 offshore islands. (d) comprises 9 kelurahan (Lowu Dua, Lowu Satu, Lowu Utara, Nataan, Tosuraya, Tosuraya Barat, Tosuraya Selatan, Wawali and Wawali Pasan) and 2 desa.
Climate Ratahan, the seat of the regency has a tropical rainforest climate (Af) moderate rainfall in August and September and heavy rainfall in the remaining months.
References