What is "coraopolis"

Population (2000): 6131
Housing Units (2000): 3119
Land area (2000): 1.337978 sq. miles (3.465346 sq. km)
Water area (2000): 0.137472 sq. miles (0.356052 sq. km)
Total area (2000): 1.475450 sq. miles (3.821398 sq. km)
FIPS code: 16144
Located within: Pennsylvania (PA), FIPS 42
Location: 40.515818 N, 80.162791 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: