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U.S. ZIP Codes Database 2026

Name: Racine County
Address: US

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Racine County ZIP Codes

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

County	State	ZIP Code	City	Area Codes
Racine County	WI	53403	Racine	`262`
Racine County	WI	53404	Racine	`262`
Racine County	WI	53405	Racine	`262`
Racine County	WI	53406	Racine	`262`
Racine County	WI	53407	Racine	`262`
Racine County	WI	53408	Racine	`262`

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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.