Anthracite Running Club (Schuylkill County)
Bryn Mawr Running Club
Chambersburg Running Club
Delco Road Runners Club (Philly area & nearby NJ, Delaware)
Elk County Striders (north-central PA: St. Mary's, Ridgway area)
Erie Runners' Club Fast Tracks Runners' Club (Valley Forge,PA)
Flying Feet sports shoes & running center (York)
Fishtown Beer Runners (Fishtown Philadelphia)
Greater Pittsburgh RRC (Library, PA)
Harrisburg Area Road Running Club Juniata Valley Striders (Lewistown)
Nittany Valley Running Club Pagoda Pacers (Reading)
Pike Creek Valley Running Club (Northern Delaware plus nearby Md., NJ and Pa.)
Runners' High (Grove City) RunWalk Northeast PA (Wilkes Barre - Scranton)
South Penn Roadrunners (Hanover)
South Philly Striders (South Philadelphia)  
Valleyforge  Striders (Valley Forge, PA)
Wyoming Valley Striders (Wilkes-Barre area)
York Road Runners Club

If you would like your running clubs added to this list click here.