This website contains more than 43,000 ZIP Codes in the United States. In addition to the basic information, the website also collects other information related to the ZIP Code, such as housing, demographic, economic, social, education, health, and safety data. Our website also has some useful tools, for example, finding ZIP Code by area code, random address, ZIP Code distance calculator, my ZIP Code, etc.

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A ZIP Code is a postal code used by the United States Postal Service (USPS), and the term ZIP is an acronym for Zone Improvement Plan. It was introduced in 1963, and the basic format is composed of five digits. As the ZIP Code is widely used, it is extended to nine digits to improve the efficiency of mail delivery. However, the five-digit ZIP Code is used more frequently in people's daily life.

This website contains the basic information of the ZIP Code, such as the city, county, and state where the ZIP Code is located, as well as the nine-digit ZIP Code and the corresponding address, interactive maps, examples of envelopes, and standard address formats.

In addition, there is other information related to the ZIP Code, such as the demography, health, crime, economy, society, education, housing, and other aspects of the area where the ZIP Code is located.

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