The Town of Dansville is in the northwest corner of the county, north of Hornell.

Daniel P. Faulkner, a prominent citizen, was popularly called "Captain Dan".

The Village of Dansville is located north of this town, but is in Livingston County.

Livingston County also forms the north and part of the western border of Dansville.

Allegany County forms the remainder of the western town line.

New York State Route 36 is an important north-south highway in Dansville.