Crystal Lake Iowa ZIP Codes
Crystal Lake holds a single ZIP code.
Every ZIP code in Crystal Lake
| ZIP code | County |
|---|---|
| 50432 | Hancock 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Crystal Lake codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Crystal Lake. 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 Crystal Lake ZIP code begins 504. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 57 ZIP codes, so Crystal Lake accounts for 2% of it.
Every Iowa ZIP prefix and the region it covers →
Area codes covering Crystal Lake
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 Crystal Lake occupies.
Crystal Lake Iowa area codes in full →
Where Crystal Lake's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Crystal Lake
| City | Distance | ZIP codes |
|---|---|---|
| Woden Iowa ZIP codes | 6.0 mi | 1 ZIP code |
| Forest City Iowa ZIP codes | 8.2 mi | 1 ZIP code |
| Britt Iowa ZIP codes | 8.6 mi | 1 ZIP code |
| Thompson Iowa ZIP codes | 10 mi | 1 ZIP code |
| Leland Iowa ZIP codes | 11 mi | 1 ZIP code |
| Titonka Iowa ZIP codes | 13 mi | 1 ZIP code |
| Garner Iowa ZIP codes | 13 mi | 1 ZIP code |
| Wesley Iowa ZIP codes | 14 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.