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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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Kendall County ZIP Codes

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

County State ZIP Code City Area Codes
Kendall County IL 60512 Bristol 331, 630
Kendall County IL 60536 Millbrook 331, 630, 779, 815
Kendall County IL 60538 Montgomery 331, 630
Kendall County IL 60541 Newark 331, 630, 779, 815
Kendall County IL 60543 Oswego 331, 630
Kendall County IL 60545 Plano 331, 630, 779, 815
Kendall County IL 60560 Yorkville 331, 630, 779, 815
Kendall County TX 78004 Bergheim 830
Kendall County TX 78006 Boerne 210, 726, 830
Kendall County TX 78013 Comfort 830
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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.