Charles City Iowa ZIP Codes
Charles City holds a single ZIP code.
Every ZIP code in Charles City
| ZIP code | County |
|---|---|
| 50616 | 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Charles City codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Charles City. 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 Charles City 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 Charles City accounts for 1% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Charles City
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 Charles City occupies.
Charles City Iowa area codes in full →
Where Charles City's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Charles City
| City | Distance | ZIP codes |
|---|---|---|
| Floyd Iowa ZIP codes | 5.5 mi | 1 ZIP code |
| Colwell Iowa ZIP codes | 7.6 mi | 1 ZIP code |
| Nashua Iowa ZIP codes | 10 mi | 1 ZIP code |
| Ionia Iowa ZIP codes | 11 mi | 1 ZIP code |
| Marble Rock Iowa ZIP codes | 12 mi | 1 ZIP code |
| Orchard Iowa ZIP codes | 12 mi | 1 ZIP code |
| Rudd Iowa ZIP codes | 12 mi | 1 ZIP code |
| Greene Iowa ZIP codes | 13 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.