After this junction, NY 12E crosses Guffin Creek on its way into the village of Chaumont. Here, NY 12E becomes Main Street again as it transitions from a rural highway back to a residential street. In the southern part of Chaumont, the route connects to CR 125, at which point NY 12E begins to pass by a mix of commercial and residential properties. It crosses over a small creek leading away from Chaumont Bay before turning slightly westward and entering the Chaumont Historic District. Just past the district, the route intersects with CR 179 (Evans Street), formerly part of NY 179. After this junction, NY 12E crosses over the Chaumont River and leaves the village limits at a junction with CR 8 (Johnny Cake Road).