Sycamore Historic District

Sycamore Historic District
Streetside in the district
LocationIrregular pattern along Main and Somonauk Sts., Sycamore, Illinois
Coordinates41°59′6″N 88°41′12″W / 41.98500°N 88.68667°W / 41.98500; -88.68667
Area99 acres (40 ha)
ArchitectMultiple
Architectural style
NRHP reference No.78003104
Added to NRHPMay 2, 1978

The Sycamore Historic District is a meandering area encompassing 99 acres (400,000 m2) of the land in and around the downtown of the DeKalb County, Illinois county seat, Sycamore. The area includes historic buildings and a number of historical and Victorian homes. Some significant structures are among those located within the Historic District including the DeKalb County Courthouse and the Sycamore Public Library. The district has been listed on the National Register of Historic Places since May 2, 1978.

There are over 200 properties within the irregular boundaries of the Sycamore Historic District. Of those, 187 are considered contributing properties to the historic district, and 22 are non-contributing. Of all of the district's homes and buildings 75% fit within the historic district concept. Some of the major structures include several prominent Queen Anne style mansions, the Sycamore library, the DeKalb County Courthouse, and dozens of mid- to late 19th-century houses.