O'Fallon, MO -- U.S. city in Missouri
   Population (2000):    46169
   Housing Units (2000): 15920
   Land area (2000):     22.467702 sq. miles (58.191079 sq. km)
   Water area (2000):    0.006537 sq. miles (0.016932 sq. km)
   Total area (2000):    22.474239 sq. miles (58.208011 sq. km)
   FIPS code:            54074
   Located within:       Missouri (MO), FIPS 29
   Location:             38.784358 N, 90.708004 W
   ZIP Codes (1990):    
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    O'Fallon, MO
    O'Fallon

O'Fallon, IL -- U.S. city in Illinois
   Population (2000):    21910
   Housing Units (2000): 8626
   Land area (2000):     10.913309 sq. miles (28.265340 sq. km)
   Water area (2000):    0.011844 sq. miles (0.030675 sq. km)
   Total area (2000):    10.925153 sq. miles (28.296015 sq. km)
   FIPS code:            55249
   Located within:       Illinois (IL), FIPS 17
   Location:             38.591549 N, 89.912000 W
   ZIP Codes (1990):    
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    O'Fallon, IL
    O'Fallon