Special routes of U.S. Route 21

Special routes of U.S. Route 21
; Special routes of U.S. Route 21
Highway system
	United States Numbered Highway System; List; Special; Divided;

Several special routes of U.S. Route 21 (US 21) exist. In order from south to north, they are as follows.

Special routes of U.S. Route 21
Highway system
United States Numbered Highway System List Special Divided