Warsaw Illinois ZIP Codes
Warsaw holds a single ZIP code.
Every ZIP code in Warsaw
| ZIP code | County |
|---|---|
| 62379 | 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Warsaw codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Warsaw. 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 Warsaw ZIP code begins 623. Those first three digits identify the sectional center facility that processes mail for this part of Illinois. Statewide that range covers 54 ZIP codes, so Warsaw accounts for 2% of it.
Every Illinois ZIP prefix and the region it covers →
Area codes covering Warsaw
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Warsaw occupies.
Warsaw Illinois area codes in full →
Where Warsaw's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Warsaw
| City | Distance | ZIP codes |
|---|---|---|
| Hamilton Illinois ZIP codes | 4.5 mi | 1 ZIP code |
| Elvaston Illinois ZIP codes | 9.9 mi | 1 ZIP code |
| Basco Illinois ZIP codes | 12 mi | 1 ZIP code |
| Lima Illinois ZIP codes | 12 mi | 1 ZIP code |
| Nauvoo Illinois ZIP codes | 14 mi | 1 ZIP code |
| West Point Illinois ZIP codes | 15 mi | 1 ZIP code |
| Ferris Illinois ZIP codes | 16 mi | 1 ZIP code |
| Carthage Illinois ZIP codes | 16 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.