Roads are maintained locally by the Palm Beach County Engineering and Public Works Department.

[1] Nearly every route in this list is a former state road since decommissioned by the Florida Department of Transportation.

Most routes are signed using standard county road shields, but some are unsigned on streets.

[3] County Road 704A is Australian Avenue in West Palm Beach.

The road terminates at an intersection with Blue Heron Boulevard (SR 708) in Riviera Beach.

[3] County Road 782 is the unsigned designation for Linton Boulevard in Kings Point and Delray Beach.

[3] CR 798 forms the north–south boundary in the Boca Raton street numbering grid.

County Road 806A is a short segment of George Bush Boulevard in Delray Beach.

County Road 809 is split into two segments of Military Trail that sandwich SR 809.

[3] County Road 809A is the designation for Northlake Boulevard in the vicinity of Palm Beach Gardens.

[3] County Road 811 comprises a portion of Dixie Highway in West Palm Beach, which itself is a historic auto trail.

[3] County Road 880 is a signed route from Belle Glade to Twentymile Bend.