Devault is an unincorporated community in Charlestown Township in Chester County, Pennsylvania, United States.

Devault is located at the intersection of Pennsylvania Route 29, Phoenixville Pike, and Charlestown Road.

[2] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.

According to the Köppen Climate Classification system, Devault has a humid subtropical climate, abbreviated "Cfa" on climate maps.

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