Peračko Blato is located in the City of Ploče, in Dubrovnik-Neretva County at an elevation of 8 meters above sea level and it covers the area of 6.60 km² (2.55 sq. miles). According to the 2011 census report, there were 292 inhabitants. It is predominantly populated by Croats (94%), but also. Nearby places: Ploče, Plina Jezero, Baćina, Rogotin, Šarić Struga, Banja, Staševica, Brečići, Kobiljača and Dubrave.