Mathia is a village in the West Champaran district in the Indian state of Bihar.

As of 2011 India census, Mathia had a population of 388 in 82 households.

Males constitute 49.74% of the population and females 50.25%.

In Mathia, 19.32% of the population is under 6 years of age.

This article related to a location in Bihar is a stub.