DeKalb County
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- Population
- 100,703
- Area
- 631.34 sq mi (1,635.16 km²), 3.31 sq mi water
- Median age
- 32.7
- Households
- 39,550
- Persons per household
- 2.4
- Median household income
- $70,724
- Median house value
- $243,600
Demographics: 2020–2024 ACS
This Afternoon
64°F
Sunny
Tonight
42°F
Clear then Patchy Fog
Saturday
67°F
Patchy Fog then Sunny
Saturday Night
46°F
Mostly Clear
Cities & Towns in DeKalb County
Afton TownshipClinton TownshipCortlandCortland TownshipDeKalbDeKalb TownshipFranklin TownshipGenoaGenoa TownshipHinckleyKingston TownshipKingston VillageKirklandLeeMaltaMalta TownshipMaple ParkMayfield TownshipMilan TownshipPaw Paw TownshipPierce TownshipSandwichSandwich TownshipShabbonaShabbona TownshipSomonaukSomonauk TownshipSouth Grove TownshipSquaw Grove TownshipSycamoreSycamore TownshipVictor TownshipWaterman