Maine State Route 231

State Route 231
Route information
Maintained by MaineDOT
Length	11.51 mi[1] (18.52 km)
Existed	1954–present
Major junctions
South end	SR 115 in North Yarmouth
North end	US 202 / SR 4 / SR 100 in New Gloucester
Location
Country	United States
State	Maine
Counties	Cumberland
Highway system
Maine State Highway System Interstate US State Auto trails Lettered highways
← SR 230 → SR 232

State Route 231 (SR 231) is a 11.51-mile-long (18.52 km) state highway located in Cumberland County in southeastern Maine. It begins at State Route 115 in North Yarmouth and runs north to New Gloucester, where it ends at U.S. Route 202, State Route 4 and State Route 100. The highway functions as an eastern bypass of Gray.