South Shore Line

For other uses, see South Shore Line (disambiguation).

Not to be confused with the Chicago South Shore and South Bend Railroad.

South Shore Line
A Lakeshore Corridor train west of Michigan City, Indiana
Overview
Locale	Chicago, Illinois, to Dyer and South Bend, Indiana
Transit type	Commuter rail
Number of lines	2
Number of stations	21
Daily ridership	7,100 (weekdays, Q2 2026)
Annual ridership	2,029,900 (2025)
Website	mysouthshoreline.com
Operation
Began operation	1903
Operator	Northern Indiana Commuter Transportation District
Technical
System length	99 miles (159 km)
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Electrification	Overhead line, 1,500 V DC
System map Millennium Station Van Buren Street Museum Campus/​11th Street 18th Street McCormick Place 57th Street 63rd Street Hegewisch Illinois Indiana Monon Corridor Lakeshore Corridor Hammond Gateway Downtown Hammond East Chicago South Hammond Gary/​Chicago Airport Munster Ridge Gary Metro Center Munster/Dyer Miller Portage/​Ogden Dunes Dune Park Beverly Shores 11th Street Carroll Avenue Hudson Lake South Bend International Airport Key Lakeshore Corridor Monon Corridor Events only Flag stop

The South Shore Line (reporting mark NICD) is a commuter rail system operated by the Northern Indiana Commuter Transportation District (NICTD) between Millennium Station in downtown Chicago, Illinois, and Northwest Indiana, United States. The system consists of two service lines: the Lakeshore Corridor and the Monon Corridor. It primarily serves the Indiana portion of the Chicago metropolitan area.

The initial line was built in 1901–1908 by predecessors of the Chicago South Shore and South Bend Railroad, which continues to operate freight service. Passenger operation was assumed by the NICTD in 1989, who also purchased the track in 1990. The South Shore Line is one of the last surviving interurban railroads in the United States. In 2025, the system had a ridership of 2,029,900, or about 7,100 per weekday as of the second quarter of 2026.