U.S. Federal Route 12 runs east-west across Northern Lake County. It is one of the main surface highways across this area. U.S. Rt. 12 passes through the following towns in Lake County. Hammond
Whiting East Chicago
Gary
U.S. Rt. 12 is multi-plexed in Lake County. U.S. Rt. 20, from Hammond to East Chicago.
EB U.S. Rt. 12/20; SB U.S. Rt. 41 at the Illinois/Indiana State Line. SB U.S. Rt. 12/20; EB U.S. Rt. 41 at the Illinois/Indiana State Line. A BGS on WB I-90/IN E-W Toll Rd. A junction marker on NB U.S. Rt. 41. A junction marker on NB U.S. Rt. 41. A guide marker on NB U.S. Rt. 41. EB U.S. Rt. 12/20 east of U.S. Rt. 41. EB U.S. Rt. 12/20 in Hammond. EB U.S. Rt. 12/20 in Whiting. EB U.S. Rt. 12/20 at the Lake George Canal. EB U.S. Rt. 12 east of U.S. Rt. 20. EB U.S. Rt. 12 west of Alder St in East Chicago. A BGS on SB IN St Rt 912. EB U.S. Rt. 12 at IN St Rt 912. A junction marker in East Chicago. A BGS on NB IN St Rt 912. A BGS on NB IN St Rt 912. A guide sign on NB IN St Rt 912. A BGS on NB IN St Rt 912. A BGS on NB IN St Rt 912. EB U.S. Rt. 12/20 near Wabash in Gary. EB U.S. Rt. 12/20 near Taft in Gary. EB U.S. Rt. 12/20 west of Garfield in Gary. A junction marker on SB IN St Rt 53. EB U.S. Rt. 12/20 in Gary. A BGS on NB I-65. A BGS on NB I-65. A set of guide markers on NB I-65. A BGS on WB I-90. A BGS on EB I-90/IN E-W Toll Road. EB U.S. Rt. 12/20 east of I-65.
