ZIP Code™ Lookup | USPS
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MCLEANSBORO, Illinois ZIP Codes
Use our address lookup or code list to find the correct 5-digit or 9-digit (ZIP+4) code for your postal mails destination.
Free ZIP code map, zip code lookup, and zip code list
United States Zip Codes provides a free zip code map and list of zip codes by state. Find zip codes by address, zip codes by city, or zip codes by state.
ZIP Code - Wikipedia
The ZIP Code system (an acronym for Zone Improvement Plan[1]) is the system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that …
Mc Leansboro, IL ZIP Code, Map and Demographics
Oct 1, 2025 · The U.S. Postal Service provides a name (and aliases) for every ZIP Code which can include cities, towns, villages, and other incorporated names. There is currently no …
ZIP Code Meaning: What the Numbers Mean & How They Work
Jun 21, 2025 · ZIP codes are structured to provide a systematic way of identifying geographic locations for efficient mail delivery. The standard ZIP code consists of five digits, while an …
ZIP Code Meaning & History: Everything You Need to Know
Jun 11, 2025 · What is a ZIP Code? A ZIP Code is a smart system that keeps America’s mail moving efficiently. It was created by the United States Postal Service (USPS) in 1963. ZIP …
US ZIP Code 62859 - McLeansboro, Illinois Overview and …
Oct 15, 2025 · 62859 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Illinois based on Median Household Income and Average Adjusted …
What is a postal code, a zip code, and how do they differ?
Feb 10, 2025 · The codes at the end of addresses, known as postal or zip codes, are crucial in helping mail carriers identify geographic locations, points of delivery, and mailing routes.
ZIP Code lookup - What are ZIP Codes & how to find them
A ZIP Code is a 5-digit number that specifies an individual destination post office or mail delivery area. ZIP Codes determine the destination of letters for final sorting and delivery.