New York State Route 111

New York State Route 111
New York State Route 111
	Map of Suffolk County with NY 111 highlighted in red
Route information
	Maintained by NYSDOT
Length	9.42 mi (15.16 km)
Existed	1930–present
Major junctions
South end	NY 27A in Islip
	Heckscher State Parkway in Islip; I-495 in Hauppauge;
North end	NY 25 / NY 25A in Village of the Branch
Location
Country	United States
State	New York
Counties	Suffolk
Highway system
	New York Highways; Interstate; US; State; Reference; Parkways;

New York State Route 111 (NY 111) is a state highway located in Suffolk County, New York, in the United States. It runs north–south for 9.42 miles (15.16 km) through the towns of Islip and Smithtown, connecting NY 27A in the town seat of Islip to the east end of the NY 25 and NY 25A concurrency in Smithtown's Village of the Branch. Most of the road is a two-lane highway, save for several short four-lane stretches in the vicinity of interchanges along the route. NY 111 was assigned as part of the 1930 renumbering of state highways in New York as an East Islip–Village of the Branch highway, using what is now County Route 17 (CR 17) south of Hauppauge. It was realigned to serve the hamlet of Islip in 1966.

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