U.S. Federal Route 231 runs east-west in Central Lake County. From the Lake/Porter County Line to Interstate 65 it runs in a southeast to northwest angle. From I-65 to U.S. Rt. 41 it is a straight esat-west highway. U.S. Rt. 231 passes through the following towns in Lake County. Leroy
SB U.S. Rt. 231 south of Leroy. SB U.S. Rt. 231 north of Leroy. SB U.S. Rt. 231 at Iowa Street. SB U.S. Rt. 231 south of I-65. A distance sign on SB I-65. A distance sign on SB I-65. A BGS on SB I-65. A BGS on NB I-65. A BGS on NB I-65. A BGS on SB I-65. A BGS on SB I-65. WB U.S. Rt. 231 at I-65. WB U.S. Rt. 231 in Crown Point. U.S. Rt. 231 is a Veterans Highway. Another marker for the Veterans Highway. NB U.S. Rt. 231 west of IN St Rt 53. WB U.S. Rt. 231/NB IN St Rt 55 in Crown Point. SB U.S. Rt. 231/IN St Rt 55 at the square in Downtown Crown Point. SB U.S. Rt. 231/IN St Rt 55 east of Downtown Crown Point. SB U.S. Rt. 231 near the courthouse in Corwn Point. SB U.S. Rt. 231 west of Crown Point. SB U.S. Rt. 231 near one of the two railroad underpasses west of Crown Point. SB U.S. Rt. 231 east of U.S. Rt. 41. A junction marker on SB U.S. Rt. 41. WB U.S. Rt. 231 at U.S. Rt. 41. The northern end marker.
