Riverdale North Dakota ZIP Codes
Riverdale holds a single ZIP code.
Every ZIP code in Riverdale
| ZIP code | County |
|---|---|
| 58565 | McLean 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Riverdale codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Riverdale. 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 Riverdale ZIP code begins 585. Those first three digits identify the sectional center facility that processes mail for this part of North Dakota. Statewide that range covers 48 ZIP codes, so Riverdale accounts for 2% of it.
Every North Dakota ZIP prefix and the region it covers →
Area codes covering Riverdale
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 Riverdale occupies.
Riverdale North Dakota area codes in full →
Where Riverdale's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Riverdale
| City | Distance | ZIP codes |
|---|---|---|
| Coleharbor North Dakota ZIP codes | 7.5 mi | 1 ZIP code |
| Underwood North Dakota ZIP codes | 11 mi | 1 ZIP code |
| Garrison North Dakota ZIP codes | 11 mi | 1 ZIP code |
| Stanton North Dakota ZIP codes | 12 mi | 1 ZIP code |
| Hazen North Dakota ZIP codes | 18 mi | 1 ZIP code |
| Washburn North Dakota ZIP codes | 21 mi | 1 ZIP code |
| Turtle Lake North Dakota ZIP codes | 22 mi | 1 ZIP code |
| Max North Dakota ZIP codes | 23 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.