State highway in Middlesex County, New Jersey, United States
Route 171 is a state highway in New Jersey, United States. It runs just under one mile (1.6 km) as an extension of U.S. Route 130 (US 130) past its northern terminus at US 1 in North Brunswick Township. The state highway ends along Georges Road near the border of North Brunswick Township and the city of New Brunswick. The route formerly extended into downtown New Brunswick ending at an intersection with Route 27, though the route was mostly unsigned inside New Brunswick. The route is a major thoroughfare in North Brunswick. The route originated as an alignment of pre-1927 Route 1 and later of US 130. After US 130 was truncated, the alignment, which had also been designated Route 25M, was later re-designated as Route 171.