Concordville (KON-kurd-vil), uninc. village, Delaware co., SE Pa., suburb, 18 mi/29 km WSW of Philadelphia, on West Branch Chester Creek; 39°53'N 75°31'W. Mfg. includes commercial printing, food, machinery, fabricated metal prod., aggregates. Agr. area on urban fringe. Brandywine Battlefield State Historical Site to W.