In Princeton, CR 533 intersects US 206, and the two routes form a concurrency. The road becomes Stockton Street, passing by the Drumthwacket Governor's mansion. US 206 turns north onto Bayard Lane, with Route 27 continuing northeast into downtown Princeton on Nassau Street, which provides access to Princeton University through Princeton Downtown. The stretch from Lawrenceville until the intersection with Nassau Street in Princeton is part of the King's Highway Historic District. Bayard Lane carries the route past more wooded developed areas, eventually curving northeast through a park. Here, US 206 becomes State Road and turns north again. Continuing to the north, the amount of development adjacent to the road decreases.