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.

More information Number, Length (mi) ...

Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
US 1	527.19	848.43	US 1 in Portsmouth, NH	Route 161 in Clair, NB	01926-01-011926	current	Mostly follows the old New England Route 1 and New England Route 24
US 2	273.64	440.38	US 2 in Shelburne, NH	I-95 in Houlton	01926-01-011926	current	Mostly follows the old New England Route 15
US 201	157.46	253.41	US 1 / SR 24 in Brunswick	SR 6 / Route 173 near Saint-Theophile, QC	01926-01-011926	current	Mostly follows the old New England Route 20
US 202	168.52	271.21	US 202 / NH 11 in Rochester, NH	I-395 / US 1A / SR 15 in Bangor	01936-01-011936	current	Currently signed with US 1A into downtown Bangor at US 2, but was truncated to I-395 in 1989. Does not officially intersect with US 2.
US 302	54.15	87.15	US 302 in Conway, NH	I-295 / US 1 / SR 100 in Portland	01935-01-011935	current	Mostly follows the old New England Route 18 Currently signed with SR 100 to end at Park Ave (formerly US 1), but was truncated in 2007 when US 1 was shifted onto I-295.

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