Ogan Ilir Regency

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 Census and 416,549 at the 2020 Census; the official estimate as at mid 2023 was 439,469 (comprising 222,549 males and 216,920 females).

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.

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 2023. 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.

Notes: (a) including one kelurahan. (b) including 2 kelurahan. (c) including 4 kelurahan. (d) The 7 districts of Rantau Panjang, Pemulutan, Pemulutan Selatan, Pemulutan Barat, Indralaya, Indralaya Utara and Indralaya Selatan, with a combined area of 959.07 km2 and a population of 201,955 in mid 2022, form part of the Palembang metropolitan area. (e) including 3 kelurahan. (f) 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). (g) except for two villages - Payakabung (with post code of 30812) and Tanjung Pering (with post code of 30813).