New York State Route 231

New York State Route 231 (NY 231) is a north–south state highway located in Suffolk County, New York, in the United States. The route extends for 9.05 miles (14.56 km) from a partial interchange with NY 27A in Babylon to an interchange with the Northern State Parkway in Dix Hills. The southernmost 2 miles (3.2 km) of NY 231 is a limited-access highway known as the Babylon–Northport Expressway; the remainder of NY 231 is known as Deer Park Avenue.

New York State Route 231

New York State Route 231 (NY 231) is a north–south state highway located in Suffolk County, New York, in the United States. The route extends for 9.05 miles (14.56 km) from a partial interchange with NY 27A in Babylon to an interchange with the Northern State Parkway in Dix Hills. The southernmost 2 miles (3.2 km) of NY 231 is a limited-access highway known as the Babylon–Northport Expressway; the remainder of NY 231 is known as Deer Park Avenue.