City · Illinois · United States
Oswego, IL — ZIP codes
1 ZIP code · Kendall County
- City
- Oswego
- County
- Kendall
- State
- Illinois
- Country
- United States
- Postal code
- 60543Single source
- Coordinates
- 41.6849, -88.3453 View on OpenStreetMap
- Area codes
- 331, 630
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 60543 | Oswego | 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.