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

All states and U.S. territories

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State directory

Illinois ZIP Codes

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

State	ZIP Code	City	County	Area Codes
IL	62883	Scheller	Jefferson County	`618`
IL	62884	Sesser	Franklin County	`618`
IL	62885	Shobonier	Fayette County	`618`
IL	62886	Sims	Wayne County	`618`
IL	62887	Springerton	White County	`618`
IL	62888	Tamaroa	Perry County	`618`
IL	62889	Texico	Jefferson County	`618`
IL	62890	Thompsonville	Franklin County	`618`
IL	62891	Valier	Franklin County	`618`
IL	62892	Vernon	Marion County	`618`

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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.