Shannon City Iowa ZIP Codes
Shannon City holds a single ZIP code.
Every ZIP code in Shannon City
| ZIP code | County |
|---|---|
| 50861 | Union 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Shannon City codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Shannon City. 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 Shannon City ZIP code begins 508. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 28 ZIP codes, so Shannon City accounts for 4% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Shannon City
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 Shannon City occupies.
Shannon City Iowa area codes in full →
Where Shannon City's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Shannon City
| City | Distance | ZIP codes |
|---|---|---|
| Arispe Iowa ZIP codes | 4.2 mi | 1 ZIP code |
| Tingley Iowa ZIP codes | 4.8 mi | 1 ZIP code |
| Diagonal Iowa ZIP codes | 7.3 mi | 1 ZIP code |
| Ellston Iowa ZIP codes | 9.1 mi | 1 ZIP code |
| Afton Iowa ZIP codes | 9.6 mi | 1 ZIP code |
| Creston Iowa ZIP codes | 12 mi | 1 ZIP code |
| Mount Ayr Iowa ZIP codes | 13 mi | 1 ZIP code |
| Clearfield Iowa ZIP codes | 13 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.