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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Henry County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Henry County.

County State ZIP Code City Area Codes
McHenry County IL 60051 Mchenry 224, 779, 815, 847
McHenry County IL 60071 Richmond 262, 779, 815
McHenry County IL 60072 Ringwood 779, 815
McHenry County IL 60081 Spring Grove 224, 779, 815, 847
McHenry County IL 60097 Wonder Lake 779, 815
McHenry County IL 60098 Woodstock 224, 779, 815, 847
McHenry County IL 60102 Algonquin 224, 847
McHenry County IL 60142 Huntley 224, 779, 815, 847
McHenry County IL 60152 Marengo 224, 779, 815, 847
McHenry County IL 60156 Lake In The Hills 224, 779, 815, 847
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.