Island Lake Illinois ZIP Codes
Island Lake holds a single ZIP code.
Every ZIP code in Island Lake
| ZIP code | County |
|---|---|
| 60042 | Lake 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Lake codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Island 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 Island Lake ZIP code begins 600. Those first three digits identify the sectional center facility that processes mail for this part of Illinois. Statewide that range covers 82 ZIP codes, so Island Lake accounts for 1% of it.
Every Illinois ZIP prefix and the region it covers →
Area codes covering Island Lake
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 Lake occupies.
Island Lake Illinois area codes in full →
Where Island Lake's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Island Lake
| City | Distance | ZIP codes |
|---|---|---|
| Wauconda Illinois ZIP codes | 3.3 mi | 1 ZIP code |
| Cary Illinois ZIP codes | 5.2 mi | 1 ZIP code |
| Fox River Grove Illinois ZIP codes | 5.8 mi | 1 ZIP code |
| Mchenry Illinois ZIP codes | 6.1 mi | 2 ZIP codes |
| Round Lake Illinois ZIP codes | 6.7 mi | 1 ZIP code |
| Crystal Lake Illinois ZIP codes | 7.5 mi | 3 ZIP codes |
| Lake Zurich Illinois ZIP codes | 8.2 mi | 1 ZIP code |
| Lake In The Hills Illinois ZIP codes | 9.0 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.