Waterloo, IA ZIP codes
Waterloo, Iowa has 4 ZIP codes, including 1 PO Box ZIP. They are in Black Hawk County.
- Population in these ZIPs
- 69,066
- Avg. median income
- $58,700population-weighted
- Typical home value
- $150,900population-weighted
- Metro area
- Waterloo-Cedar Falls, IA
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Waterloo, IA ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 50701 | Black Hawk County | 30,232 | $61,475 | $185,800 |
| 50702 | Black Hawk County | 20,882 | $62,021 | $149,900 |
| 50703 | Black Hawk County | 17,952 | $50,060 | $93,400 |
| 50704 PO Box | Black Hawk County | — | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Waterloo
- Evansdale 2 mi
- Raymond 4 mi
- Cedar Falls 5 mi
- Gilbertville 6 mi
- Dewar 6 mi
- Dunkerton 10 mi
- Hudson 11 mi
- Jesup 11 mi
- La Porte City 12 mi
- Buckingham 14 mi
- Denver 14 mi
- Janesville 15 mi
Frequently asked questions
What county is Waterloo, Iowa in?
Waterloo ZIP codes are in Black Hawk County.
Which Waterloo ZIP codes are PO Boxes?
50704 is a PO Box or single-organization ZIP code; it has no residential delivery area.