Map of DeKalb, United States

DeKalb is a city in Illinois, United States, with a population of about 43,211. It lies at 41.9295°N, 88.7504°W, about 268 m above sea level. DeKalb is about 1,047 km (650 mi) northwest of Washington, D.C., the capital. The nearest city on our map is Aurora, 40 km to the southeast.

DeKalb at a glance

Region
Illinois
Population
43,211GeoNames
Coordinates
41.9295, -88.750441°55′46″N 88°45′01″W
Time zone
America/ChicagoUTC−06:00 / UTC−05:00 (daylight saving time)
Local time
–
Elevation
268 m (879 ft)
Distance to Washington, D.C.
1,047 km (650 mi)

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Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.