The barangay of Bairan consists of the following puroks:
Purok 1
Purok 2 Purok 2 has its Fiesta on the third Saturday in June
Purok 3 Purok 3 has its Fiesta on the first Saturday in June
Purok 4
Purok 5 Purok 5 has, depending on the area, its Fiesta on May 13, the third Sunday of June or October 13
Purok 6 Purok 6 has its Fiesta on the last Saturday of September