New York State Route 121 (NY 121) is a north–south state highway in New York, going from northern Westchester County

Westchester County, New York

Westchester County is a county located in the U.S. state of New York. Westchester covers an area of and has a population of 949,113 according to the 2010 Census, residing in 45 municipalities...

 to the village of Brewster

Brewster, New York

Brewster is a village within the town of Southeast in Putnam County, New York, United States. Its population was 2,162 at the 2000 census. The village is the most densely populated portion of the town...

 in Putnam County

Putnam County, New York

Putnam County is a county located in the U.S. state of New York, in the lower Hudson River Valley. Putnam county formed in 1812, when it detached from Dutchess County. , the population was 99,710. It is part of the New York Metropolitan Area. The county seat is the hamlet of Carmel...

.

Route description

NY 121 begins north of the hamlet of Bedford Village

Bedford (CDP), New York

Bedford, commonly known as Bedford Village, is a hamlet located in the town of Bedford in Westchester County, New York...

 at NY 22

New York State Route 22

New York State Route 22 is a north–south state highway in eastern New York in the United States. It runs parallel to the state's eastern edge from the outskirts of New York City to a short distance south of the Canadian border. At , it is the state's longest north–south route and...

 and runs through the communities of Cross River (in the town of Lewisboro

Lewisboro, New York

Lewisboro is a town in Westchester County, New York, United States. The population was 12,411 at the 2010 census. The town is named after John Lewis.- History :...

) and North Salem

North Salem, New York

North Salem is a town in the northeast part of Westchester County, New York, United States. The county ranks second for wealthiest counties in New York State and the seventh wealthiest county nationally...

 (a hamlet in the town of the same name). The route continues north into Putnam County, going through the hamlet of Peach Lake

Peach Lake, New York

Peach Lake is a hamlet located mostly in the town of Southeast in Putnam County, New York; a portion of the CDP is in the town of North Salem in Westchester County. As of the 2010 census, the population was 1,629....

, and ending just east of the village of Brewster

Brewster, New York

Brewster is a village within the town of Southeast in Putnam County, New York, United States. Its population was 2,162 at the 2000 census. The village is the most densely populated portion of the town...

 (in the town of Southeast

Southeast, New York

Southeast is a town in Putnam County, New York, United States. The population was 17,316 at the 2000 census. The town is in the southeast part of the county. Interstate 84, Interstate 684, US Route 202, and US Route 6 pass through the town.- History :...

) at US 6

U.S. Route 6 in New York

U.S. Route 6 is a part of the U.S. Highway System that runs from Bishop, California, to Provincetown, Massachusetts. In New York, US 6 extends from the Pennsylvania state line at Port Jervis to the Connecticut state line east of Brewster...

/US 202

U.S. Route 202 in New York

U.S. Route 202 is a part of the U.S. Highway System that runs from New Castle, Delaware, to Bangor, Maine. In the U.S. state of New York, US 202 extends from the New Jersey state line near Suffern to the Connecticut state line east of Brewster. While most of US 202 is signed...

 just after an interchange with eastbound Interstate 84

Interstate 84 in New York

Interstate 84 is a part of the Interstate Highway System that runs from Dunmore, Pennsylvania, to Sturbridge, Massachusetts, in the Eastern United States. In New York, I-84 extends from the Pennsylvania state line at Port Jervis to the Connecticut state line east of Brewster...

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History

NY 121 was first designated in the 1930 state highway renumbering.

Major intersections