New York State Route 109

New York State Route 109 marker
New York State Route 109
Map
Map of Long Island with NY 109 highlighted in red
Route information
Maintained by NYSDOT
Length7.08 mi[1] (11.39 km)
Existedearly 1930s[2][3]–present
Major junctions
West end NY 24 in Farmingdale
Major intersections CR 28 / Southern State Parkway in East Farmingdale
NY 27 in Lindenhurst
East end NY 27A in Babylon
Location
CountryUnited States
StateNew York
CountiesNassau, Suffolk
Highway system
← NY 108→ NY 110

New York State Route 109 (NY 109), also known as the Babylon–Farmingdale Turnpike and historically as Maywood–Babylon Road, is a four-lane state highway on Long Island, in New York, United States. It runs from the Village of Farmingdale in the Nassau County town of Oyster Bay to the Village of Babylon in Suffolk County. It runs mainly west-to-east in a northwest to southeast direction.

Unusually, the mileage count on the reference markers on NY 109 begins at the route's eastern terminus at NY 27A in Babylon and increases as the route heads west and north toward Farmingdale. This runs contrary to the New York State Department of Transportation's standard practice of inventorying an east-west route from west to east.

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