South Cotabato's 1st congressional district
| South Cotabato's 1st congressional district | |
|---|---|
| Constituency for the House of Representatives of the Philippines | |
Location of South Cotabato within the Philippines | |
| Province | South Cotabato |
| Region | Soccsksargen |
| Population | 297,574 (2024) |
| Electorate | 195,438 (2025) |
| Major settlements | |
| Area | 957.97 km2 (369.87 sq mi) |
| Current constituency | |
| Created | 1987 |
| Representative | Isidro D. Lumayag |
| Political party | PFP |
| Congressional bloc | Majority |
South Cotabato's 1st congressional district is one of the two congressional districts of the Philippines in the province of South Cotabato. It has been represented in the House of Representatives since 1987. The district covers its southern municipalities of Polomolok, Tampakan and Tupi, and, until 2022, the independent city of General Santos. It is currently represented in the 20th Congress by Isidro Lumayag of the Partido Federal ng Pilipinas.