Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.
ZIP Codes in Lake County Address Data
Businesses Addresses: 27,511
PO Box Addresses: 5,723
Residential Addresses: 346,578
Multi-Family Addresses: 57,666
Single Family Addresses: 288,020
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Map of Lake County, IL ZIP Codes With Actual (Default) City Names