This guide is for general information only and is not legal advice. Laws change — verify current rules with your state DOT or a licensed attorney before relying on this for any legal matter. Read full disclaimer.
There is no statewide rule on sidewalk cycling — it is left to cities and counties in New York. New York Vehicle and Traffic Law does not address bicycles on sidewalks statewide; § 1231 applies the rules of the road to cyclists on roadways, leaving sidewalks to local control. New York City Administrative Code § 19-176 makes it unlawful for any person 14 or older to ride a bicycle (with wheels 26" or larger) on a sidewalk unless a sign expressly permits it; police may seize the bicycle and a civil penalty of up to $100 applies. Buffalo, Rochester, and most other major NY cities also restrict sidewalk riding in central business districts.
Because New York doesn't set a statewide rule, the answer is "it depends on the city." Central business districts, downtown cores, and school zones are the most commonly restricted areas. Always check the local municipal code before you ride on a sidewalk.