Title: Sycamore, Illinois
Content:  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 in 2000. As of 2019, the population has grown to an estimated 18,322. Sycamore is the county seat of DeKalb County and was named after the sycamore tree.
Title: Sycamore Township, DeKalb County, Illinois
Content:  Sycamore Township is one of nineteen townships in DeKalb County, Illinois, USA. As of the 2010 census, its population was 14,425 and it contained 5,855 housing units.
Title: Sycamore Township, DeKalb County, Illinois
Content: Sycamore (northeast three-quarters) 
Title: Sycamore Historic District
Content:  The Sycamore Historic District is a meandering area encompassing 99 acre 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.
Title: DeKalb County, Illinois
Content:  DeKalb County is a county located in the U.S. state of Illinois. As of the 2020 United States Census, the population was 100,420. Its county seat is Sycamore. DeKalb County is part of the Chicago-Naperville-Elgin, IL-IN-WI Metropolitan Statistical Area.
Title: Sycamore Township, DeKalb County, Illinois
Content: Barron ; Charter Grove ; Elmwood ; Mount Carmel Sycamore 
Title: Sycamore, Illinois
Content:  Sycamore is located along Illinois Route 64 (State Street in Sycamore) about 35 mi southeast of Rockford and 55 mi west-northwest of Chicago. It is along the south bank of the East Branch of the South Branch Kishwaukee River in DeKalb County. According to the 2010 census, Sycamore has a total area of 9.768 sqmi, of which 9.73 sqmi (or 99.61%) is land and 0.038 sqmi (or 0.39%) is water. The terrain in Sycamore and the surrounding area is gently rolling and contains rich soil which was originally heavily forested.
Title: Sycamore Township, DeKalb County, Illinois
Content:  According to the 2010 census, the township has a total area of 34.5 sqmi, of which 34.24 sqmi (or 99.25%) is land and 0.26 sqmi (or 0.75%) is water.
Title: DeKalb County Courthouse (Illinois)
Content:  The DeKalb County Courthouse is located in the county seat of DeKalb County, Illinois, U.S., 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 the courthouse and thus, ultimately, the county seat would be located. The current building is the third structure to bear the name "DeKalb County Courthouse." DeKalb County's Courthouse still serves as the county's primary judicial center and is a contributing property to the Sycamore Historic District. The district joined the National Register of Historic Places in 1978. As the county's 
Title: Sycamore, Delaware County, Oklahoma
Content:  Sycamore is located in east-central Delaware County at 36.40139°N, -94.71333°W (36.401443, -94.713463). It is 6 mi east of Jay, the county seat. According to the United States Census Bureau, the Sycamore CDP has a total area of 10.7 km2, all land.

Question: Verify the following claims with "True" or "False": I know, Sycamore is in DeKalb County, Illinois.
Answer: True