Grundy Center Iowa ZIP Codes
Grundy Center holds a single ZIP code.
Every ZIP code in Grundy Center
| ZIP code | County |
|---|---|
| 50638 | Grundy 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Grundy Center codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Grundy Center. 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 Grundy Center 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 Grundy Center accounts for 1% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Grundy Center
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 Grundy Center occupies.
Grundy Center Iowa area codes in full →
Where Grundy Center's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Grundy Center
| City | Distance | ZIP codes |
|---|---|---|
| Holland Iowa ZIP codes | 2.8 mi | 1 ZIP code |
| Morrison Iowa ZIP codes | 5.3 mi | 1 ZIP code |
| Lincoln Iowa ZIP codes | 8.1 mi | 1 ZIP code |
| Wellsburg Iowa ZIP codes | 9.2 mi | 1 ZIP code |
| Reinbeck Iowa ZIP codes | 9.6 mi | 1 ZIP code |
| Beaman Iowa ZIP codes | 10 mi | 1 ZIP code |
| Dike Iowa ZIP codes | 10 mi | 1 ZIP code |
| Conrad Iowa ZIP codes | 11 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.