Williamson County is over 66,000,
making it one of the largest counties
in Illinois outside of the metro areas
of major population centers.
Marion, located in the geographic
center of both the county and
Southern Illinois, is the county seat
and the largest community at
Williamson County is located
88 air miles (120 miles by interstate)
Southeast of St. Louis, MO at the
intersection of Interstate 57,
Interstate 24, and Illinois Route 13,
a main East-West 4-lane expressway.
Major communities include Benton,
Carbondale, Carterville, Herrin,
Marion, Murphysboro, Harrisburg,
Mt. Vernon, and West Frankfort.
More than 150,000 people
make their homes in
Williamson and the adjacent
counties and over a quarter of
a million live within an
hour’s drive of the county,
making it a retail and
commercial hub for the area.
The people of Williamson
County are proud of their area,
their heritage, their families
and their reputation for
being good workers.
REDCO has been a major
player in bringing industry,
investment, and employment
to Williamson County and
Southern Illinois since 1999.