County Route 533 (CR 533) is a county highway in the U.S. state of New Jersey. The highway extends 32.78 miles (52.75 km) from the White Horse Circle, in Hamilton Township to Middlesex CR 607 on the border of Bound Brook and Middlesex Borough. CR 533 shares a long concurrency with U.S. Route 206 (US 206) through Princeton and Montgomery Township, while portions of the roadway in Somerset County are part of the Millstone River Valley Scenic Byway.