This is the northern most county for IL St Rt 1. Route 1 runs from the southside of Chicago through the southern suburbs to Will County. IL St Rt 1 passes through the following towns. Chicago
Calumet Park
Riverdale
Harvey
East Hazel Crest Homewood
Glenwood
Chicago Heights
South Chicago Heights Steger
IL St Rt 1 is not multi-plexed in Cook County. IL St Rt 1 intersects the following highways in Cook County. U.S. Rt. 30 at Chicago Heights.
NB IL St Rt 1 in Steger. NB IL St Rt 1 in Chicago Heights. Junction marker on EB U.S. Rt. 30. NB IL St Rt 1 in South Chicago Heights. NB IL St Rt 1 at 195th. SB IL St Rt 1 south of I-80/294. BGS on EB I-80/SB I-294. A BGS on EB I-80/SB I-294. A BGS on WB I-80/NB I-294. A BGS on EB I-80/SB I-294. A BGS on WB I-80/NB I-294. A BGS on WB I-80/NB I-294. NB IL St Rt 1 north of I-80/294. NB IL St Rt 1 in Harvey. A junction marker on EB U.S. Rt. 6. A junction marker on EB U.S. Rt. 6. SB IL St Rt 1 south of IL St Rt 83 in Harvey. NB IL St Rt 1 south of IL St Rt 83. SB IL St Rt 1 in Chicago, south of 127th. SB IL St Rt 1 south of 122nd in Chicago. NB IL St Rt 1 in Chicago. The northern begin point in Chicago. (November, 2007) The northern begin marker. (November, 2007) The northern end in Chicago. (November, 2007) The northern end marker in Chicago. (November, 2007) Northern begin and end marker. Overhead sign on NB I-57. Overhead sign on I-57. This sign was replaced in 2003 by the one above. Overhead BGS's at the exit for IL St Rt 1. A BGS on NB I-57. A BGS on NB I-57. A BGS on NB I-57. A BGS on SB I-57.
