Where is DeKalb County, Illinois?

location of DeKalb county on a map — Location of DeKalb County within the state of Illinois

DeKalb County is a county equivalent area found in Illinois, USA. The county government of DeKalb is found in the county seat of Sycamore.

With a total 1,643.76 sq. km of land and water area, DeKalb County, Illinois is the 1627th largest county equivalent area in the United States. Home to 105,462 people, DeKalb County has a total 40907 households earning 53375 on average per year.

DeKalb County, Illinois - Quick Facts

FIPS Code	17037
Area Codes	815
Time Zone	CST
Major Cities	DeKalb (population: 46,071), Sycamore (population: 21,749), Sandwich (population: 12,159), Genoa (population: 7,216), Cortland (population: 4,540), Somonauk (population: 4,419), Hinckley (population: 2,873), Kirkland (population: 2,701), Kingston (population: 2,615), Waterman (population: 1,998)
Land Area	40,719 sq miles
Water Area	631 sq miles
Household Income	$53,375
Housing Units	40,907
Median Home Value	$173,000
High School Grads	91% of population
Holders of Bachelors Degrees	30% of population
Retail Spending	$10,351 per capita
Food & Accomodation Sales	$128,175 per capita
Universities and Colleges	Hair Professionals Career College Inc