Helfenstein, PA

ZIP code 17939 encompasses Mahanoy City and nearby parts of eastern Schuylkill County, Pennsylvania, in a region shaped historically by anthracite coal mining. Notable landmarks include the Mahanoy City Historic District, the Mahanoy City Public Library, and St. Canicus Roman Catholic Church. The borough’s compact downtown reflects its industrial-era development, while surrounding neighborhoods and wooded hills connect the community to the broader coal-region landscape.