City · Illinois · United States
Sycamore, IL — ZIP codes
1 ZIP code · DeKalb County
- City
- Sycamore
- County
- DeKalb
- State
- Illinois
- Country
- United States
- Postal code
- 60178Single source
- Coordinates
- 41.9911, -88.6928 View on OpenStreetMap
- Area codes
- 815, 779
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 60178 | Sycamore | Single source |
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Last generated : 2026-08-21. Report an error.