- Southern Terminus:
- NY 12B in Clinton
- Northern Terminus:
- Utica-Rome Expressway (NY 49/NY 365) and Martin Street in Rome
- 12.06 miles
NY 233 is a north/south route extending from Clinton to Rome. It begins at NY 12B and extends north to an interchange with the Utica-Rome Expressway (NY 49/NY 365) near its western end, where it becomes Martin Street. The entire length is a two-lane undivided road with traffic lights.