Isabela's 1st congressional district
| Isabela's 1st congressional district | |
|---|---|
| Constituency for the House of Representatives of the Philippines | |
Location of Isabela within the Philippines | |
| Province | Isabela |
| Region | Cagayan Valley |
| Population | 399,196 (2020) |
| Electorate | 259,291 (2022) |
| Major settlements | 9 LGUs
|
| Area | 4,519.71 km2 (1,745.07 sq mi) |
| Current constituency | |
| Created | 1987 |
| Representative | Antonio T. Albano |
| Political party | Lakas–CMD |
| Congressional bloc | Majority |
Isabela's 1st congressional district is one of the six congressional districts of the Philippines in the province of Isabela. It has been represented in the House of Representatives since 1987. The district consists of the capital city of Ilagan and the northern municipalities of Cabagan, Delfin Albano, Divilacan, Maconacon, San Pablo, Santa Maria, Santo Tomas and Tumauini. The municipality of Palanan was part of this district until it was redistricted to the 2nd district, effective in 2019. It is currently represented in the 19th Congress by Antonio T. Albano of the Lakas–CMD.