Upon crossing into Erie County and the town of Concord, NY 240 remains county-maintained, now co-designated as unsigned CR 198. Now known as South Vaughn Street, the route proceeds northwest, intersecting with the eastern terminus of CR 62 (Cattaraugus Road). After this junction, NY 240 and CR 198 wind northeast through Concord as a two-lane rural road. The route bends northward, entering the village of Springville, where it intersects with NY 39 (East Main Street / Creek Road). After Springville, NY 240 and CR 198 re-enter the town of Concord, returning the two-lane rural roadway it was prior to entering Springville. Intersecting with the eastern terminus of CR 412 (North Street), the routes continue north through Concord, intersecting with CR 410 (Middle Road).