City · Iowa · United States

Waterloo, IA — ZIP codes

4 ZIP codes · Black Hawk County

City: Waterloo
County: Black Hawk
State: Iowa
Country: United States
Postal codes: 50701507025070350704
Single source
Coordinates: 42.4778, -92.3661 View on OpenStreetMap

ZIP codes (4)

Postal code	Place name	Verification
50701	Waterloo	Single source
50702	Waterloo	Single source
50703	Waterloo	Single source
50704	Waterloo	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.