Ogan Ilir Regency (often abbreviated to OI Regency) is a regency of South Sumatra Province, Indonesia. It takes its name from the main river which stream that area, Ogan River. And the name Ilir means downstream. Indralaya is the regency seat. The regency borders Palembang City and Muara Enim Regency to the north, Ogan Komering Ilir Regency to the east, Ogan Komering Ilir Regency, and East Ogan Komering Ulu Regency to the south, and Muara Enim Regency to the west.
Ogan Ilir Regency covers an area of 2,666.07 km², and had a population of 380,904 at the 2010 CensusBiro Pusat Statistik, Jakarta, 2011. and 416,549 at the 2020 Census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2025 was 452,275 (comprising 228,935 males and 223,340 females).Badan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Ogan Ilir Dalam Angka 2026 (Katalog-BPS 1102001.1610)
Administrative districts Based on Presidential Decree No.37/2003, Ogan Komering Ilir Regency was divided on 18 December 2003 into two regencies, namely a reduced Ogan Komering Ilir Regency and a new Ogan Ilir Regency. Ogan Ilir Regency then included the six districts of Indralaya (as the capital), Tanjung Raja, Tanjung Batu, Muara Kuang, Pemulutan and Rantau Alai. Subsequently a further ten districts have been added by splitting of the original six.
This Regency is now administratively composed of sixteen districts (kecamatan), comprising 241 villages. These are listed below with their areas (in km2) 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 Ogan Ilir Dalam Angka 2026 (Katalog-BPS 1102001.1610) They are grouped below into two geographical sectors (without administrative status) - a northern sector (which forms part of the Palembang metropolitan area) and a southern sector (outside the metropolitan area, with a much lower average population density). The table also includes the locations of the district administrative centres, the number of administrative villages in each district (totaling 227 rural desa and 14 urban kelurahan), and its postal codes.
Kode Wilayah Name ofDistrict(kecamatan) Area inkm2 Pop'nCensus2010 Pop'nCensus2020 Pop'nEstimatemid 2025Admincentre No.ofVillagesPost code 16.10.01 Muara Kuang 300.75 17,430 19,759 21,394 Muara Kuang 14 (a) 30865 16.10.14 Rambang Kuang 528.82 19,780 20,838 21,553 Tambang Rambang 1330869 16.10.15 Lubuk Keliat 207.67 16,484 17,755 18,777 Betung II 1030868 16.10.02 Tanjung Batu 263.75 42,158 46,931 50,468 Tanjung Batu Timur 21 (b) 30665 16.10.16 Payaraman 180.57 21,728 25,909 27,951 Payaraman Timur 13 (c) 30664 16.10.06 Rantau Alai 62.16 10,713 10,801 11,977 Rantai Alai 1330866 16.10.13 Kandis 50.25 10,293 10,635 11,449 Kandis II 1230867 Sub-totals for Southern Sector 1,593.97 138,586 152,628 163,569 96 16.10.03 Tanjung Raja 70.41 40,873 43,612 46,738 Tanjung Raja Utara 19 (d) 30663 16.10.11 Rantau Panjang 40.85 16,481 17,029 18,376 Rantau Panjang Ulu 1230661 16.10.12 Sungai Pinang 42.62 23,122 25,896 27,773 Sungai Pinang 13 (e) 30662 16.10.05 Pemulutan 122.92 40,708 46,128 50,967 Pemulutan Ulu 2520663 16.10.09 Pemulutan Selatan (South Pemulutan)61.49 16,426 16,710 18,615 Sungai Lebung (Lebung River) 1530663 16.10.10 Pemulutan Barat (West Pemulutan)60.00 12,428 13,799 14,988 Talang Pangeran Ulu 1130663 16.10.04 Indralaya 101.22 37,553 40,634 44,712 Indralaya Mulya 20 (f) 30862 (g) 16.10.07 Indralaya Utara (North Indralaya)472.33 34,421 38,027 43,107 Tanjung Pering 16 (h) 30862 (i) 16.10.08 Indralaya Selatan (South Indralaya)100.26 20,306 22,086 23,430 Meranjat III 1430862 Sub-totals for Northern Sector 1,072.10 242,318 263,921 288,706 145 Totals for Regency 2,667.07 380,904 416,549 452,275 Indralaya 241
Notes: (a) including one kelurahan - Muara Kuang. (b) including two kelurahan - Tanjung Batu and Tanjung Batu Timur. (c) including two kelurahan - Payaraman Barat and Payaraman Timur. (d) including four kelurahan - Tanjung Raja, Tanjung Raja Barat, Tanjung Raja Timur and Tanjung Raja Utara. (e) including one kelurahan - Sungai Pinang. (f) including three kelurahan - Indralaya Indah, Indralaya Mulya and Indralaya Raya. (g) except for four villages - Sakatiga Seberang (with post code of 30814), Tanjung Sejaro (with post code of 30815), Sakatiga (with post code of 30816) and Tanjung Seteko (with post code of 30817). (h) including one kelurahan - Timbangan. (i) except for two villages - Payakabung (with post code of 30812) and Tanjung Pering (with post code of 30813).
The nine Northern districts of Tanjung Raya, Rantau Panjang, Sungai Pinang, Pemulutan, Pemulutan Selatan, Pemulutan Barat, Indralaya, Indralaya Utara and Indralaya Selatan, with a combined area of 1,072.10 km2 and a population of 288,706 in mid 2025,Badan Pusat Statistik, Jakarta, 27 February 2026, Kabupaten Ogan Ilir Dalam Angka 2026 (Katalog-BPS 1102001.1610) form part of the Palembang metropolitan area.
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