Royal Iowa ZIP Codes
Royal holds a single ZIP code.
Every ZIP code in Royal
| ZIP code | County |
|---|---|
| 51357 | Clay 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Royal codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Royal. 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 Royal ZIP code begins 513. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 23 ZIP codes, so Royal accounts for 4% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Royal
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 Royal occupies.
Royal Iowa area codes in full →
Where Royal's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Royal
| City | Distance | ZIP codes |
|---|---|---|
| Everly Iowa ZIP codes | 7.2 mi | 1 ZIP code |
| Greenville Iowa ZIP codes | 7.7 mi | 1 ZIP code |
| Spencer Iowa ZIP codes | 8.7 mi | 1 ZIP code |
| Peterson Iowa ZIP codes | 11 mi | 1 ZIP code |
| Linn Grove Iowa ZIP codes | 12 mi | 1 ZIP code |
| Sutherland Iowa ZIP codes | 12 mi | 1 ZIP code |
| Hartley Iowa ZIP codes | 13 mi | 1 ZIP code |
| Gillett Grove Iowa ZIP codes | 13 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.