Postville Iowa ZIP Codes
Postville holds a single ZIP code.
Every ZIP code in Postville
| ZIP code | County |
|---|---|
| 52162 | Allamakee 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Postville codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Postville. 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 Postville ZIP code begins 521. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 33 ZIP codes, so Postville accounts for 3% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Postville
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 Postville occupies.
Postville Iowa area codes in full →
Where Postville's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Postville
| City | Distance | ZIP codes |
|---|---|---|
| Castalia Iowa ZIP codes | 5.8 mi | 1 ZIP code |
| Luana Iowa ZIP codes | 5.9 mi | 1 ZIP code |
| Clermont Iowa ZIP codes | 7.2 mi | 1 ZIP code |
| Monona Iowa ZIP codes | 9.2 mi | 1 ZIP code |
| Elgin Iowa ZIP codes | 9.5 mi | 1 ZIP code |
| Ossian Iowa ZIP codes | 11 mi | 1 ZIP code |
| Farmersburg Iowa ZIP codes | 13 mi | 1 ZIP code |
| Waukon Iowa ZIP codes | 14 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.