City · Oklahoma · United States
Hydro, OK — ZIP codes
1 ZIP code · Caddo County
- City
- Hydro
- County
- Caddo
- State
- Oklahoma
- Country
- United States
- Postal code
- 73048Single source
- Coordinates
- 35.4520, -98.5604 View on OpenStreetMap
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 73048 | Hydro | 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. Last generated : 2026-08-21. Report an error.