Diagonal Iowa ZIP Codes
Diagonal holds a single ZIP code.
Every ZIP code in Diagonal
| ZIP code | County |
|---|---|
| 50845 | Ringgold 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Diagonal codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Diagonal. 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 Diagonal 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 Diagonal accounts for 4% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Diagonal
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 Diagonal occupies.
Diagonal Iowa area codes in full →
Where Diagonal's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Diagonal
| City | Distance | ZIP codes |
|---|---|---|
| Shannon City Iowa ZIP codes | 7.3 mi | 1 ZIP code |
| Clearfield Iowa ZIP codes | 7.4 mi | 1 ZIP code |
| Benton Iowa ZIP codes | 7.4 mi | 1 ZIP code |
| Tingley Iowa ZIP codes | 8.2 mi | 1 ZIP code |
| Mount Ayr Iowa ZIP codes | 8.6 mi | 1 ZIP code |
| Arispe Iowa ZIP codes | 12 mi | 1 ZIP code |
| Lenox Iowa ZIP codes | 12 mi | 1 ZIP code |
| Ellston Iowa ZIP codes | 12 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.