mason county, il

from U.S. Gazetteer Counties (2000)
Mason -- U.S. County in Illinois
   Population (2000):    16038
   Housing Units (2000): 7033
   Land area (2000):     538.942504 sq. miles (1395.854617 sq. km)
   Water area (2000):    24.426097 sq. miles (63.263298 sq. km)
   Total area (2000):    563.368601 sq. miles (1459.117915 sq. km)
   Located within:       Illinois (IL), FIPS 17
   Location:             40.260702 N, 89.913299 W
   Headwords:
    Mason
    Mason, IL
    Mason County
    Mason County, IL