Mulegé is the northernmost municipality of the Mexican state of Baja California Sur. It is the second-largest (behind only Ensenada) municipality by area in the country, with an area of 32,092.2 km² (12,777 sq mi). In the census of 2010 it had a population of 59,114 inhabitants. Isla Natividad is part of the municipality.
The municipal seat is located in Santa Rosalía.
There is an initiative to split the municipality into two, with the division along the ridge dividing the current municipality, so that the Pacific side, which includes its largest city, Guerrero Negro, and also Villa Alberto Andrés Alvarado Arámburo, would be separated from the Gulf of California side, which includes Santa Rosalía and Mulegé.
Including the municipal seat of Santa Rosalía, the municipality is subdivided into six delegaciones:
- Santa Rosalía
- Bahía Tortugas
- Guerrero Negro
- San Ignacio
The census of 2010 lists 459 populated places, of which 90 had a population of 10 or more, and 38 of 100 or more. Those of 500 or more are listed below:
||2010 Census Population
|Villa Alberto Andrés Alvarado Arámburo
|Gustavo Díaz Ordaz
|Estero de la Bocana
|Ejido San Lucas
Coordinates: 27°15′N 113°15′W / 27.250°N 113.250°W