West Champaran have 18 pincodes.

Bagaha 15 locations 845101
Gaunaha 1 locations 845102
Harinagar 12 locations 845103
Madhubani 19 locations 845104
Naraipur 18 locations 845105
Ramnagar (West Champaran) 16 locations 845106
Valmiki Nagar 4 locations 845107
Mainatand 8 locations 845306
Sikta 17 locations 845307
Bettiah R.S. 40 locations 845438
Chanpatia R S 18 locations 845449
Chuhari 10 locations 845450
D.K.Shikarpur 11 locations 845451
Jogapatti 12 locations 845452
Lauriya 19 locations 845453
Majhaulia Rs 22 locations 845454
Narkaiaganj 18 locations 845455
Jagdishpur (West Champaran) 16 locations 845459