DeKalb County IL United States
| County FIPS | 17037 |
| Largest City | DeKalb |
| State | Illinois |
| Latitude | 41.8935 |
| Longitude | -88.7703 |
| Population | 100,703 |
| Density | 159.56 people per square mile |
| Time Zone | America/Chicago |
Median household: $70,724
Median individual: $36,511
Mode: 74.2% White
Median house value: $243,442.0
Median: 32.7 years old
With at least college degree: 33.0%
With STEM degree: 43.6%
Never married: 42.2%
Unemployed: 6.8%
All data comes from the SimpleMaps US Counties Database, 2026.
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