'Seneca County, NY' definitions:

Seneca -- U.S. County in New York

From: Gazetteer 2000
Name :
Seneca -- U.S. County in New York
Population (2000) :
33342
Housing Units (2000) :
14794
Land area (2000) :
324.912952 sq. miles (841.520646 sq. km)
Water area (2000) :
65.600825 sq. miles (169.905350 sq. km)
Total area (2000) :
390.513777 sq. miles (1011.425996 sq. km)
Located within :
New York (NY), FIPS 36
Location :
42.801104 N, 76.827879 W