DeKalb County Map, Illinois

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DeKalb County, Illinois

DeKalb County is in northern Illinois with the city of DeKalb as the central hub. Northern Illinois University calls it home, situated in DeKalb. Sycamore is the county seat.

There’s lots of farming here as corn fields surround the towns. Wind turbines are a common sight in Dekalb County. But it’s mostly high-tech jobs and agriculture mix now.

The county is known for barbed wire because it was invented here. The Egyptian Theatre is a local treasure and it still hosts shows year-round. You also can’t forget about Shabbona Lake State Park in the southwest.

Category	Details
County Name	DeKalb County
County Seat	Sycamore
Population	Approximately 106,000
Cities, Towns, and Communities	DeKalb, Sycamore, Genoa, Sandwich, Cortland, Hinckley, Kingston, Kirkland, Malta, Maple Park, Somonauk, Shabbona, Waterman, and various other communities.
Interstates and Highways	Interstate 88, U.S. Highway 34, Illinois Route 23, Illinois Route 38, Illinois Route 64, Illinois Route 72
FIPS Code	17-037
Total Area (Land and Water)	635 square miles (land: 631 sq mi, water: 4 sq mi)
Adjacent Counties (and Direction)	Boone County (North), McHenry County (Northeast), Kane County (East), Kendall County (Southeast), LaSalle County (South), Lee County (West), Ogle County (West), Winnebago County (Northwest)
Time Zone	Central Time Zone (CT)
State	Illinois
Coordinates	41.8885° N, 88.7641° W
Etymology	Named after Johann de Kalb, a German-French military officer who served as a major general in the American Revolutionary War
Major Landmarks	Northern Illinois University, Ellwood House Museum, DeKalb County Courthouse, Shabbona Lake State Park
Website	DeKalb County Website