Pacific Junction Iowa ZIP Codes
Pacific Junction holds a single ZIP code.
Every ZIP code in Pacific Junction
| ZIP code | County |
|---|---|
| 51561 | Mills 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Pacific Junction codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Pacific Junction. 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 Pacific Junction 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 Pacific Junction accounts for 2% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Pacific Junction
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 Pacific Junction occupies.
Pacific Junction Iowa area codes in full →
Where Pacific Junction's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Pacific Junction
| City | Distance | ZIP codes |
|---|---|---|
| Glenwood Iowa ZIP codes | 3.6 mi | 1 ZIP code |
| Silver City Iowa ZIP codes | 11 mi | 1 ZIP code |
| Tabor Iowa ZIP codes | 11 mi | 1 ZIP code |
| Malvern Iowa ZIP codes | 11 mi | 1 ZIP code |
| Thurman Iowa ZIP codes | 14 mi | 1 ZIP code |
| Council Bluffs Iowa ZIP codes | 15 mi | 3 ZIP codes |
| Randolph Iowa ZIP codes | 16 mi | 1 ZIP code |
| Hastings Iowa ZIP codes | 16 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.