Lake County is served by four Metra commuter rail lines, totaling 32 train stations in Lake County:

• Union Pacific / North Line (UP-N) - travels along the lakefront from Kenosha, WI to Ogilvie Transportation Center in Chicago
• North Central Service (NCS) - goes from Antioch, IL in northwest Lake County to Union Station in Chicago;
• Milwaukee District North (MD-N) - travels from Fox Lake in northwest Lake County to Union Station in Chicago;
• Union Pacific / Northwest Line (UP-NW) - This line goes through Lake County and services the Barrington residents in Cook and McHenry Counties. The UP-NW travels from Harvard (McHenry County) to Ogilvie Transportation Center in Chicago.