Here, the route turns northwest onto Palmyra Road at an intersection with Senator Stout Road/Hog Hollow Road and soon crosses CR 513. CR 519 forms the border between Holland Township to the west and Alexandria Township to the east as turns southwest onto Mount Pleasant Road, with CR 631 continuing north. At this point, the route is fully within Holland Township and continues through agricultural areas before entering Milford. The road makes a turn to the south before heading southwest again and passes residences. At the intersection with CR 619, CR 519 turns northwest onto Frenchtown Road and becomes Water Street at the intersection with Bridge Street/Barron Road a short distance later in the commercial center of Milford. The road passes more homes before leaving Milford for Holland Township again and becoming Milford-Warren Glen Road. In this area, the route passes a mix of farms, woods, and residential subdivisions, turning north and running through the community of Riegel Ridge. Past here, CR 519 enters woodland and turns northwest before crossing over Musconetcong Mountain.