City · Illinois · United States
Round Lake, IL — ZIP codes
1 ZIP code · Lake County
- City
- Round Lake
- County
- Lake
- State
- Illinois
- Country
- United States
- Postal code
- 60073Single source
- Coordinates
- 42.3668, -88.0888 View on OpenStreetMap
- Area codes
- 224, 847
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 60073 | Round Lake | 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). Last generated : 2026-08-21. Report an error.