Chemung County is located in southwestern New York. The county is along the Pennsylvania border, in a part of New York called the Southern Tier and is also part of the Finger Lakes Region. Chemung County has a total area of approximately 411 square miles of which 99% is land and 1% water. As of the census of 2000, there were 91,070 people, 35,049 households, and 23,272 families residing in Chemung County, New York. Its name is derived from the name of a Delaware Indian village (meaning "big horn").