Harpers Ferry Iowa ZIP Codes
Harpers Ferry holds a single ZIP code.
Every ZIP code in Harpers Ferry
| ZIP code | County |
|---|---|
| 52146 | 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Harpers Ferry codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Harpers Ferry. 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 Harpers Ferry 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 Harpers Ferry accounts for 3% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Harpers Ferry
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 Harpers Ferry occupies.
Harpers Ferry Iowa area codes in full →
Where Harpers Ferry's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Harpers Ferry
| City | Distance | ZIP codes |
|---|---|---|
| Waterville Iowa ZIP codes | 7.3 mi | 1 ZIP code |
| Marquette Iowa ZIP codes | 11 mi | 1 ZIP code |
| Lansing Iowa ZIP codes | 12 mi | 1 ZIP code |
| Monona Iowa ZIP codes | 16 mi | 1 ZIP code |
| Waukon Iowa ZIP codes | 17 mi | 1 ZIP code |
| Luana Iowa ZIP codes | 18 mi | 1 ZIP code |
| Farmersburg Iowa ZIP codes | 20 mi | 1 ZIP code |
| New Albin Iowa ZIP codes | 22 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.