Missouri Valley Iowa ZIP Codes
Missouri Valley holds a single ZIP code.
Every ZIP code in Missouri Valley
| ZIP code | County |
|---|---|
| 51555 | Harrison County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Missouri Valley codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Missouri Valley. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Missouri Valley ZIP code begins 515. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 57 ZIP codes, so Missouri Valley accounts for 2% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Missouri Valley
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Missouri Valley occupies.
Missouri Valley Iowa area codes in full →
Where Missouri Valley's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Missouri Valley
| City | Distance | ZIP codes |
|---|---|---|
| Modale Iowa ZIP codes | 7.0 mi | 1 ZIP code |
| Logan Iowa ZIP codes | 8.3 mi | 1 ZIP code |
| Magnolia Iowa ZIP codes | 9.3 mi | 1 ZIP code |
| Mondamin Iowa ZIP codes | 12 mi | 1 ZIP code |
| Crescent Iowa ZIP codes | 14 mi | 1 ZIP code |
| Woodbine Iowa ZIP codes | 16 mi | 1 ZIP code |
| Neola Iowa ZIP codes | 17 mi | 1 ZIP code |
| Underwood Iowa ZIP codes | 17 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.