I-495 is the Long Island Expressway, and the sole interstate highway in the Town of Huntington, with interchanges from part of Exit 48 in West Hills on the Nassau-Suffolk County Line to Exit 52 in Commack.
Northern State Parkway was the sole limited-access highway in the Town of Huntington until the construction of the Long Island Expressway. It has interchanges from Exit 39 in West Hills east of the Nassau-Suffolk County Line to Exit 43 in Commack on the Huntington-Smithtown Town Line.
NY25A, the northernmost west–east state highway on Long Island including the Town of Huntington. It enters the town from Laurel Hollow in Nassau County, running through historic Cold Spring Harbor, then downtown Huntington, later Centerport, Northport, and Fort Salonga where it crosses the Huntington-Smithtown Town Line.
NY25, the parent route of NY 25A, which also runs west to east along Jericho Turnpike. It enters the town at West Hills from Woodbury, passes through South Huntington, Elwood, and Commack, where it crosses the Huntington-Smithtown Town Line.
Old Country Road, an extension of a principal west–east thoroughfare in Central Nassau County. It enters Suffolk County in a hidden overlap with Round Swamp Road at Exit 48 on I-495, then branches off to the northeast as it passes through West Hills, Melville, Dix Hills and South Huntington. Unlike in Nassau County, the road has no designation.
NY108, is the westernmost south–north state route in Suffolk County. It runs from Suffolk CR 11 at Cold Spring Harbor's LIRR station to NY 25A running along the edge of the Nassau County Line.
NY110, is a major south–north highway in Suffolk County. It enters the town from East Farmingdale near the State University of New York at Farmingdale, and runs through Melville, then South Huntington, Huntington Station, Downtown Huntington, and serves as the main road in Halesite, before finally terminating at Youngs Hill Road, where it becomes the undesignated East Shore Road.
NY231, has been entirely a four-lane divided highway throughout its existence. It enters the town from Deer Park in the Town of Babylon between Rutland and Kenmore Streets and runs through Dix Hills, where it has interchanges with I-495 and the Northern State Parkway. Immediately after the parkway, the route terminates at a fork in the road for Suffolk CRs 35 to the northwest and 66 to the northeast.
CR 2 is Straight Path, a southwest to northeast county road running from the Babylon Town Line through Wyandanch as the main road, ending at NY 231 in Dix Hills.
CR 3 is a south to north county route known as Wellwood Avenue from north of East Farmingdale at the Babylon Town Line to Ruland Road (CR 5) where it becomes Pinelawn Road until it reaches NY 110 in Melville.
CR 11, includes Woodbury Road in Cold Spring Harbor, and Pulaski Road from Cold Spring Harbor through Fort Salonga.
CR 35 is a de-facto extension of NY 231 running southwest to northeast from Dix Hills through NY 110 in Halesite.
CR 92 is the south-to-north route from Oakwood Road from NY 25 in West Hills, Huntington Manor, and Huntington, then turns east onto High Street to end at NY 110.
I-495 is the Long Island Expressway, and the sole interstate highway in the Town of Huntington, with interchanges from part of Exit 48 in West Hills on the Nassau-Suffolk County Line to Exit 52 in Commack.
Northern State Parkway was the sole limited-access highway in the Town of Huntington until the construction of the Long Island Expressway. It has interchanges from Exit 39 in West Hills east of the Nassau-Suffolk County Line to Exit 43 in Commack on the Huntington-Smithtown Town Line.
NY25A, the northernmost west–east state highway on Long Island including the Town of Huntington. It enters the town from Laurel Hollow in Nassau County, running through historic Cold Spring Harbor, then downtown Huntington, later Centerport, Northport, and Fort Salonga where it crosses the Huntington-Smithtown Town Line.
NY25, the parent route of NY 25A, which also runs west to east along Jericho Turnpike. It enters the town at West Hills from Woodbury, passes through South Huntington, Elwood, and Commack, where it crosses the Huntington-Smithtown Town Line.
NY108, is the westernmost south–north state route in Suffolk County. It runs from Suffolk CR 11 at Cold Spring Harbor's LIRR station to NY 25A running along the edge of the Nassau County Line.
NY110, is a major south–north highway in Suffolk County. It enters the town from East Farmingdale near the State University of New York at Farmingdale, and runs through Melville, then South Huntington, Huntington Station, Downtown Huntington, and serves as the main road in Halesite, before finally terminating at Youngs Hill Road, where it becomes the undesignated East Shore Road.
NY231, has been entirely a four-lane divided highway throughout its existence. It enters the town from Deer Park in the Town of Babylon between Rutland and Kenmore Streets and runs through Dix Hills, where it has interchanges with I-495 and the Northern State Parkway. Immediately after the parkway, the route terminates at a fork in the road for Suffolk CRs 35 to the northwest and 66 to the northeast.
CR 2 is Straight Path, a southwest to northeast county road running from the Babylon Town Line through Wyandanch as the main road, ending at NY 231 in Dix Hills.
CR 3 is a south to north county route known as Wellwood Avenue from north of East Farmingdale at the Babylon Town Line to Ruland Road (CR 5) where it becomes Pinelawn Road until it reaches NY 110 in Melville.
CR 11, includes Woodbury Road in Cold Spring Harbor, and Pulaski Road from Cold Spring Harbor through Fort Salonga.
CR 35 is a de-facto extension of NY 231 running southwest to northeast from Dix Hills through NY 110 in Halesite.
CR 67 includes the remaining drivable portion of the Long Island Motor Parkway.
CR 92 is the south-to-north route from Oakwood Road from NY 25 in West Hills, Huntington Manor, and Huntington, then turns east onto High Street to end at NY 110.