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.
The rule
There is no statewide rule on sidewalk cycling — it is left to cities and counties in New Hampshire. New Hampshire has no statewide statute permitting or prohibiting sidewalk cycling. RSA 265:144 governs equipment and rider behaviour but is silent on sidewalks. Manchester restricts sidewalk riding in the central business district; Portsmouth bans it in the historic downtown; smaller towns generally permit sidewalk riding except where signed.
What this means in practice
Because New Hampshire 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.