Lake Forest, IL ZIP Codes, Coordinates & Counties

Lake Forest, Illinois has 1 ZIP code in Lake county. The approximate center of Lake Forest is 42.238, -87.87. Lake Forest has about 101,358 known street addresses.

ZIP codes
1
Counties
1
State
Illinois (IL)
Coordinates
42.238, -87.87
Mapped addresses
101,358

ZIP codes in Lake Forest, IL

ZIP CodeCountyLatitudeLongitude
60045 Lake 42.238 -87.87

Counties Lake Forest spans

Lake

Most common streets in Lake Forest

Sheridan, Laurel, Market, Western, Waukegan, Washington, Ridge, Everett, Linden, Valley

Frequently asked questions

What ZIP codes are in Lake Forest, IL?

Lake Forest, Illinois has 1 ZIP code, ranging from 60045 to 60045. The full list, with each ZIP's county and coordinates, is in the table on this page.

What county is Lake Forest, IL in?

Lake Forest is in Lake county.

What are the latitude and longitude of Lake Forest, IL?

The approximate center of Lake Forest, Illinois is latitude 42.238, longitude -87.87. Coordinates for each ZIP code are listed in the table above.

How many ZIP codes does Lake Forest, IL have?

Lake Forest has 1 ZIP code.

How many addresses are in Lake Forest, IL?

Lake Forest, Illinois has about 101,358 known street addresses in the sthan.io US address database.

What are the most common streets in Lake Forest, IL?

Some of the most common street names in Lake Forest are Sheridan, Laurel, Market, Western, Waukegan, Washington.

What cities are near Lake Forest, IL?

Cities near Lake Forest include Lake Bluff (3 mi), Deerfield (4 mi), Highwood (4 mi), Lincolnshire (4 mi), Great Lakes (5 mi).

Cities near Lake Forest

Lake Bluff, IL (3 mi) Deerfield, IL (4 mi) Highwood, IL (4 mi) Lincolnshire, IL (4 mi) Great Lakes, IL (5 mi) Highland Park, IL (5 mi) Vernon Hills, IL (5 mi) Libertyville, IL (6 mi)

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Last updated: June 2026 · Data: sthan.io US address database