ZIP Code 60042

60042 is one of Illinois's ZIP codes, delivering to addresses in Island Lake, Lake County.

City: Island Lake
County: Lake County
State: Illinois
Prefix: 600xx

Where this code sits

60042 is part of the 600xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Island Lake.

Island Lake Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 60042 delivers to without sharing its boundary.

ZIP codes nearest 60042

The ZIP codes whose reference points sit closest to 60042.
ZIP code	Distance	Delivers to
ZIP code 60084	3.1 mi	Wauconda, IL
ZIP code 60013	4.6 mi	Cary, IL
ZIP code 60021	5.7 mi	Fox River Grove, IL
ZIP code 60051	5.8 mi	Mchenry, IL
ZIP code 60041	6.4 mi	Ingleside, IL
ZIP code 60050	6.6 mi	Mchenry, IL
ZIP code 60012	6.6 mi	Crystal Lake, IL
ZIP code 60047	7.1 mi	Lake Zurich, IL

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 60042, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 60042. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.