The U.S. Post Office in Sycamore, Illinois

Sycamore, Illinois

Sycamore is a city in DeKalb County, Illinois, United States. It has a commercial district based and centered on Illinois Route 64. The population was 17,519 at the 2010 census, up from 12,020 at the 2000 census.-Early settlement:...

 is listed on the National Register of Historic Places

National Register of Historic Places

The National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation...

 as part of the Sycamore Historic District

Sycamore Historic District

The Sycamore Historic District is a meandering area encompassing 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...

. The district was designated and listed in May 1978. It stands directly across the street from another key structure in the district, the Sycamore Public Library

Sycamore Public Library

The Sycamore Public Library, in Sycamore, Illinois, was erected in 1905 in the former location of Mansion House, Sycamore's oldest structure. Construction began in May of that year and the library officially opened to the public on Thanksgiving Day, 1905. The library joined the National Register of...

 and cross-corner from the district's largest structure, the DeKalb County Courthouse

DeKalb County Courthouse (Illinois)

The DeKalb County Courthouse is located in the county seat of DeKalb County, Illinois, U.S.A., the city of Sycamore. The Classical Revival structure sits on a square facing Illinois Route 64 as it passes through the city. The current courthouse was constructed in 1905 amid controversy over where...

. It is open M-F from 8:30 am - 6:00 pm, Sat. from 9:00 am - 3:00 pm, and it's closed on Sunday.