Island Kentucky ZIP Codes
Island holds a single ZIP code.
Every ZIP code in Island
| ZIP code | County |
|---|---|
| 42350 | 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Island codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Island. 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 Island ZIP code begins 423. Those first three digits identify the sectional center facility that processes mail for this part of Kentucky. Statewide that range covers 45 ZIP codes, so Island accounts for 2% of it.
Every Kentucky ZIP prefix and the region it covers →
Area codes covering Island
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 Island occupies.
Island Kentucky area codes in full →
Where Island's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Island
| City | Distance | ZIP codes |
|---|---|---|
| Livermore Kentucky ZIP codes | 3.5 mi | 1 ZIP code |
| Bremen Kentucky ZIP codes | 6.8 mi | 1 ZIP code |
| Sacramento Kentucky ZIP codes | 6.9 mi | 1 ZIP code |
| South Carrollton Kentucky ZIP codes | 7.4 mi | 1 ZIP code |
| Centertown Kentucky ZIP codes | 8.5 mi | 1 ZIP code |
| Calhoun Kentucky ZIP codes | 9.1 mi | 1 ZIP code |
| Central City Kentucky ZIP codes | 10 mi | 1 ZIP code |
| Rockport Kentucky ZIP codes | 11 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.