Historic district

A historic district in the is a group of buildings, properties or sites that have been designated by one of several entities on different levels as historically or architecturally significant. Buildings, structures, objects and sites within a historic district are normally divided into two categories, contributing and non-contributing. Districts greatly vary in size, some having hundreds of structures while others have just a few.

The Federal government designates historic districts through the U.S. Department of Interior, under the auspices of the National Park Service. Federally designated historic districts are listed on the National Register of Historic Places.