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
Maps and coordinates
County directory

Tazewell County ZIP Codes

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

County State ZIP Code City Area Codes
Tazewell County IL 61534 Green Valley 309
Tazewell County IL 61535 Groveland 309
Tazewell County IL 61550 Morton 309
Tazewell County IL 61554 Pekin 309
Tazewell County IL 61555 Pekin 309
Tazewell County IL 61558 Pekin 309
Tazewell County IL 61564 South Pekin 309
Tazewell County IL 61568 Tremont 309
Tazewell County IL 61571 Washington 309
Tazewell County IL 61610 Creve Coeur 309
Page 1 of 4

Geographic Map of Tazewell County

Postal context

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.