Grayslake Illinois ZIP Codes
Grayslake holds a single ZIP code.
Every ZIP code in Grayslake
| ZIP code | County |
|---|---|
| 60030 | 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Grayslake codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Grayslake. 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 Grayslake 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 Grayslake accounts for 1% of it.
Every Illinois ZIP prefix and the region it covers →
Area codes covering Grayslake
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 Grayslake occupies.
Grayslake Illinois area codes in full →
Where Grayslake's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Grayslake
| City | Distance | ZIP codes |
|---|---|---|
| Round Lake Illinois ZIP codes | 3.5 mi | 1 ZIP code |
| Mundelein Illinois ZIP codes | 4.7 mi | 1 ZIP code |
| Libertyville Illinois ZIP codes | 5.2 mi | 1 ZIP code |
| Gurnee Illinois ZIP codes | 5.3 mi | 1 ZIP code |
| Lake Villa Illinois ZIP codes | 5.9 mi | 1 ZIP code |
| Wauconda Illinois ZIP codes | 6.8 mi | 1 ZIP code |
| Vernon Hills Illinois ZIP codes | 8.2 mi | 1 ZIP code |
| Waukegan Illinois ZIP codes | 8.5 mi | 3 ZIP codes |
Straight-line distance between place reference points, not driving distance.