the province is bordered on the north by the tacna province of peru on the south by the tamarugal province in the tarapac region on the east the parinacota province and on the west by the pacific ocean.
it limits at the north with the province of tacna in peru at the south with the province of tamarugal in the region of tarapac at the east with the province of parinacota and to the west with the pacific ocean.