The Town of Rochester is an interior town located near the center of Ulster County (Mid-Hudson region of New York). The northwest part of the town is in the Catskill Park.
US Route 209 passes across the town.
Mombaccus was the Dutch name for the area that became the Town of Rochester. It was first settled in 1672. The name Rochester began with the issuance of a land patent in 1703. It became a Town in 1788 and the formal establishment of the Town of Rochester occurred in 1803.