Missouri Valley, IA ZIP code
The ZIP code for Missouri Valley, Iowa is 51555. It is in Harrison County.
- Population in these ZIPs
- 4,952
- Avg. median income
- $85,300population-weighted
- Typical home value
- $232,900population-weighted
- Metro area
- Omaha, NE-IA
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Missouri Valley, IA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 51555 | 4,952 | $85,273 | $232,900 |
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 Missouri Valley
Frequently asked questions
What is the ZIP code for Missouri Valley, IA?
The ZIP code for Missouri Valley, IA is 51555.
What county is Missouri Valley, Iowa in?
Missouri Valley ZIP codes are in Harrison County.