State Street Commercial Historic District is a national historic district located at Hammond, Lake County, Indiana.

The district encompasses 28 contributing buildings in the central business district of Hammond.

It developed between about 1885 and 1946, and includes notable example of Commercial, Classical Revival, Late Gothic Revival, and Art Deco style architecture.

[2] It was listed in the National Register of Historic Places in 1999.

This article about a property in Lake County, Indiana on the National Register of Historic Places is a stub.