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
A BGS on NB 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. WB U.S. Rt. 231/NB IN St Rt 55 in Crown Point. SB U.S. Rt. 231 near the courthouse in Corwn Point. SB U.S. Rt. 231 near one of the two railroad underpasses west of Crown Point. WB U.S. Rt. 231 at U.S. Rt. 41. The northern end marker.