Maine State Route 161

State Route 161
SR 161 in red, SR 161B in blue
Route information
Maintained by MaineDOT
Length	86.16 mi[1] (138.66 km)
Existed	1925–present
Major junctions
South end	Route 190 in Fort Fairfield
Major intersections	US 1A in Fort Fairfield US 1 / SR 89 in Caribou US 1 in Fort Kent SR 11 in Fort Kent
North end	Dickey Road in Allagash
Location
Country	United States
State	Maine
Counties	Aroostook
Highway system
Maine State Highway System Interstate US State Auto trails Lettered highways
← SR 160 → SR 162

State Route 161 (SR 161) is part of Maine's system of numbered state highways. It runs 86 miles (138 km) from Fort Fairfield to Allagash. It begins at the Fort Fairfield–Andover Border Crossing along the Canada–US border to Dickey Road near the confluence of the Allagash and Saint John rivers.

SR 161 runs through the communities of Fort Fairfield, Caribou, Woodland, New Sweden, Stockholm, New Canada, Fort Kent, St. John, St. Francis, and Allagash.

Most of the portion that runs through Caribou has been re-routed, due to a bypass that was completed in 2012. The two-lane bypass now carries SR 161, and the old portion that runs through downtown Caribou has been re-signed as SR 161B.