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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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St. Joseph County ZIP Codes

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

County State ZIP Code City Area Codes
St. Joseph County IN 46595 Wyatt 574
St. Joseph County IN 46601 South Bend 574
St. Joseph County IN 46604 South Bend 574
St. Joseph County IN 46613 South Bend 574
St. Joseph County IN 46614 South Bend 574
St. Joseph County IN 46615 South Bend 574
St. Joseph County IN 46616 South Bend 574
St. Joseph County IN 46617 South Bend 574
St. Joseph County IN 46619 South Bend 574
St. Joseph County IN 46620 South Bend 574
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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.