List of U.S. Highways in Maine

United States Numbered Highways in Maine
Standard markers for US Highways in Maine
System information
Maintained by MaineDOT
Formed:	November 11, 1926 (1926-11-11)
Highway names
Interstates:	Interstate x (I-X)
US Highways:	U.S. Route x (US-X)
State:	State Route x or Route x (SR X)
System links
Maine State Highway System Interstate U.S. State

Note about termini: In several cases there is disagreement between the administrative termini of a route (which is defined by MaineDOT) and the termini signed in the field. All termini listed on this page are administrative termini; discrepancies are listed on the respective pages.