Koirgawan is a village in Mehsi taluk, Purba Champaran district, Bihar. Its LGD code is 218761 and it covers 1.737 km². Category: Rural.
Bordering villages: Bala Tola, Bhagwatia, Galimpur, Dheluaha, Nonimal, Parsonia, Bakhri.
Boundary from the Survey of India village boundary database. All villages in Bihar