Soppeng Regency is a landlocked regency in South Sulawesi province of Indonesia. Soppeng Regency has its seat of government (capital) in the town of Watansoppeng, located 180 km from Makassar. The regency covers an area of 1,385.55 km, and had a population of 223,826 at the 2010 Census and 235,167 at the 2020 Census. The official estimate of population as of mid-2023 was 240,955 (including 116,455 males and 124,500 females).

The regency covers the area of the former Bugis Kingdom of Soppeng [id], of which Watansoppeng was the capital, set among rolling foothills on the western edge of the fertile Walanae Valley, which runs north to Lake Tempe.

Soppeng Regency in 2020 (as in 2010) comprised eight administrative Districts (Kecamatan), tabulated below with their areas 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, and the number of administrative villages in each district (totaling 49 rural desa and 21 urban kelurahan), and its post code.

Kode Wilayah	Name of District (kecamatan)	Area in km	Pop'n Census 2010	Pop'n Census 2020	Pop'n Estimate mid 2023	Admin centre	No. of villages	Post code
73.12.01	Marioriwawo	300	44,310	48,200	49,520	Takalala	13	90862
73.12.04	Lalabata	278	44,269	48,663	49,828	Watansoppeng	10	90811 - 90814
73.12.02	Liliriaja	96	26,964	28,107	28,845	Cangadi	8	90863
73.12.08	Citta	40	7,999	8,046	8,242	Citta	4	90861
73.12.03	Lilirilau	187	38,202	37,802	38,798	Cabenge	12	90871
73.12.06	Donri Donri	222	22,920	23,887	24,538	Tajuncu	9	90853
73.12.05	Marioriawa	320	27,861	29,015	29,320	Batu-Batu	10	90852
	Totals	1,557	223,826	235,167	240,955	Watamsoppeng	70

Notes: (a) comprising 2 kelurahan (Labessi and Tettikenrarae) and 11 desa. (b) comprising 7 kelurahan (Bila, Botto, Lalabata Rilau, Lapajung, Lemba, Ompo and Salokaraja) and 3 desa.
(c) comprising 3 kelurahan (Appanang, Galung and Jennae) and 5 desa. (d) comprising 4 kelurahan (Cabenge, Macanre, Pajalesang and Ujung) and 8 desa.
(e) comprising 5 kelurahan (Attang Salo, Batu-Batu, Kaca, Limpomajang and Manorang Salo) and 5 desa.

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4°20′55″S 119°52′57″E / 4.34861°S 119.88250°E / -4.34861; 119.88250