List of county routes in Sussex County, New Jersey

The following is a list of county routes in Sussex County in the U.S. state of New Jersey. For more information on the county route system in New Jersey as a whole, including its history, see County routes in New Jersey.

500-series county routes
In addition to those listed below, the following 500-series county routes serve Sussex County:
 * CR 515, CR 517, CR 519, CR 521, CR 560, CR 565