What is "lower burrell"

Population (2000): 12608
Housing Units (2000): 5324
Land area (2000): 11.548423 sq. miles (29.910278 sq. km)
Water area (2000): 0.272506 sq. miles (0.705786 sq. km)
Total area (2000): 11.820929 sq. miles (30.616064 sq. km)
FIPS code: 44864
Located within: Pennsylvania (PA), FIPS 42
Location: 40.583966 N, 79.721948 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords: