The Collaborative International Dictionary of English v.0.48:

Philo- \Philo-\
   A combining form from Gr. fi`los loving, fond of, attached
   to; as, philosophy, philotechnic.
   [1913 Webster]

U.S. Gazetteer Places (2000):

Philo, OH -- U.S. village in Ohio
   Population (2000):    769
   Housing Units (2000): 313
   Land area (2000):     0.418436 sq. miles (1.083744 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.418436 sq. miles (1.083744 sq. km)
   FIPS code:            62442
   Located within:       Ohio (OH), FIPS 39
   Location:             39.861308 N, 81.908816 W
   ZIP Codes (1990):     43771
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Philo, OH
    Philo


U.S. Gazetteer Places (2000):

Philo, IL -- U.S. village in Illinois
   Population (2000):    1314
   Housing Units (2000): 492
   Land area (2000):     0.762437 sq. miles (1.974702 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.762437 sq. miles (1.974702 sq. km)
   FIPS code:            59533
   Located within:       Illinois (IL), FIPS 17
   Location:             40.005359 N, 88.156483 W
   ZIP Codes (1990):     61864
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Philo, IL
    Philo