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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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Newport County ZIP Codes

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

County State ZIP Code City Area Codes
Newport County RI 02801 Adamsville 401
Newport County RI 02835 Jamestown 401
Newport County RI 02837 Little Compton 401, 508, 774
Newport County RI 02840 Newport 401
Newport County RI 02841 Newport 401
Newport County RI 02842 Middletown 401
Newport County RI 02871 Portsmouth 401
Newport County RI 02872 Prudence Island 401
Newport County RI 02878 Tiverton 401, 508, 774

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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.