At this point, both directions of US 206 are in Lawrence Township and rejoin, with US 206 continuing north as a two-lane undivided road and CR 583 heading to the northeast. US 206 continues through suburban residential areas within Lawrence Township. The route makes a turn to the northeast before heading north again and passing to the east of Rider University. A short distance later, the road has a cloverleaf interchange with I-295 prior to an intersection with CR 546. In this area, US 206 is briefly a two-lane divided highway. Past CR 546, the route becomes two-lane undivided Main Street and heads north-northeast through Lawrenceville, passing development and the mile-long campus of The Lawrenceville School. Upon leaving Lawrenceville, US 206 turns more to the east though rural surroundings, forming a short concurrency with CR 569. From this point, the route continues northeast and enters Princeton.