roome County is a county located in the U.S. state of New York. As of the 2010 census, the population was 200,600.[1] It was named in honor of John Broome, who was lieutenant governor in 1806 when Broome County was established. Its county seat is Binghamton, which is also its major city. The current county executive is Debra A. Preston. Broome County is also home to Binghamton University, one of four university centers in the SUNY system.

Broome County is located in south-central New York, directly north of the border with Pennsylvania in a section of the state called the Southern Tier. The Chenango River joins the Susquehanna River, which flows through the county.
The western half of the county is hilly but has wide valleys that accommodate Binghamton and its suburbs. In the northern portion Interstate 81 takes advantage of another glacial valley. To the east, however, the terrain becomes much more rugged as the land tilts up to the Catskills.

The highest elevation is a U.S. National Geodetic Survey benchmark known as Slawson atop an unnamed hill in the Town of Sanford. It is approximately 2087 feet[2] (636 m) above sea level. An area due east on the Delaware County line in Oquaga Creek State Park also lies within the same elevation contour line. The lowest point is 864 feet (263 m) above sea level, along the Susquehanna at the Pennsylvania state line.

http://en.wikipedia.org/wiki/Broome_County,_New_York