Shelby is an unincorporated community and census-designated place in Cedar Creek Township, Lake County, Indiana.

[4] Shelby lies in the southeast corner of Cedar Creek Township, bordered to the south by the Kankakee River, which forms the Newton County line.

Indiana State Road 55 crosses the Kankakee River at Shelby, making one of the few Kanakee River crossings from Lake County.

[5] According to the U.S. Census Bureau, the Shelby CDP has an area of 1.3 square miles (3.3 km2), all of it recorded as land.

[5] The successor to the Shelby location of Whiteco's business (in this location making graphics for commercial vehicles), Modagraphics, closed its doors, however, in 1993, as a result of a consolidation within its new parent company from Illinois.