Tompkins County, NY
History
When counties were established in the British Province of New York in 1683, the present Tompkins County was part of Albany County.On April 7, 1817, Tompkins County was created by combining portions of Seneca and the remainder of Cayuga County. The county was named after then vice-president (to President James Monroe) and former New York Governor Daniel Tompkins. Tompkins almost certainly never visited the county named for him.
In 1854, the county lost the town of Hector and the west line of lots in Newfield to the newly formed Schuyler County, New York.
Source: Wikipedia
Modern Day Adjacent Counties
Cayuga County - northCortland County - east
Tioga County - south
Chemung County - southwest
Schuyler County - west
Seneca County - northwest