4th federal electoral district of Sonora
| Sonora's 4th | |
|---|---|
| Electoral district of the Chamber of Deputies of Mexico | |
4th district since 2017 | |
| Incumbent | |
| Member | Ramón Ángel Flores Robles |
| Party | ▌Labour Party |
| Congress | 66th (2024–2027) |
| District | |
| State | Sonora |
| Head town | Guaymas |
| Coordinates | 27°55′N 110°53′W / 27.917°N 110.883°W |
| Covers | 41 municipalities |
| Region | First |
| Precincts | 278 |
| Population | 361,610 |
The 4th federal electoral district of Sonora (Spanish: Distrito electoral federal 04 de Sonora) is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of seven such districts in the state of Sonora.
It elects one deputy to the lower house of Congress for each three-year legislative session by means of the first-past-the-post system. Votes cast in the district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the first region.
The current member for the district, elected in the 2024 general election, is Ramón Ángel Flores Robles. Originally elected for the National Regeneration Movement (Morena), he switched to the Labour Party on 19 September 2024.