Marble Rock Iowa ZIP Codes
Marble Rock holds a single ZIP code.
Every ZIP code in Marble Rock
| ZIP code | County |
|---|---|
| 50653 | Floyd 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Marble Rock codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Marble Rock. 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 Marble Rock ZIP code begins 506. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 70 ZIP codes, so Marble Rock accounts for 1% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Marble Rock
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 Marble Rock occupies.
Marble Rock Iowa area codes in full →
Where Marble Rock's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Marble Rock
| City | Distance | ZIP codes |
|---|---|---|
| Greene Iowa ZIP codes | 5.7 mi | 1 ZIP code |
| Rockford Iowa ZIP codes | 7.3 mi | 1 ZIP code |
| Dougherty Iowa ZIP codes | 9.0 mi | 1 ZIP code |
| Rudd Iowa ZIP codes | 11 mi | 1 ZIP code |
| Aredale Iowa ZIP codes | 11 mi | 1 ZIP code |
| Charles City Iowa ZIP codes | 12 mi | 1 ZIP code |
| Floyd Iowa ZIP codes | 13 mi | 1 ZIP code |
| Bristow Iowa ZIP codes | 13 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.