U.S. postal lookup

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.

42,735 verified records

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State directory

Arkansas ZIP Codes

Complete postal directory, details, and geographic map for the State of Arkansas.

State	ZIP Code	City	County	Area Codes
AR	71731	El Dorado	Union County	`870`
AR	71740	Emerson	Columbia County	`318, 870`
AR	71742	Fordyce	Dallas County	`870`
AR	71743	Gurdon	Clark County	`870`
AR	71744	Hampton	Calhoun County	`870`
AR	71745	Harrell	Calhoun County	`870`
AR	71747	Huttig	Union County	`318, 870`
AR	71748	Ivan	Dallas County	`870`
AR	71749	Junction City	Union County	`318, 870`
AR	71750	Lawson	Union County	`870`

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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.