World ZIP Code & Postal Code Lookup

A ZIP code (Zone Improvement Plan code) is a postal code used by the United States Postal Service (USPS) since 1963. The basic format is a 5-digit number (e.g., 10001), with an optional ZIP+4 extension adding 4 more digits for precise delivery routing. Other countries use similar systems under different names: postcodes (UK), postal codes (Canada, Australia), PIN codes (India), PLZ (Germany), and more.

You can find your ZIP code by: (1) Using the search bar above and entering your city or address, (2) Using our "What Is My ZIP Code" tool which detects your location automatically, (3) Browsing by country and drilling down to your region and city. For US addresses, the USPS website also provides an official lookup tool.

The term "ZIP code" specifically refers to the US postal system. However, most countries have equivalent postal code systems. The UK uses postcodes, Canada uses postal codes (letter-number format like M5V 2T6), India uses PIN codes, Germany uses PLZ, Brazil uses CEP, Japan uses 郵便番号, and Australia uses numeric postcodes. Our directory covers all of these systems across 200+ countries.

There are approximately 41,000–43,000 active ZIP codes in the United States. This number changes slightly each year as the USPS creates, retires, or modifies ZIP codes based on mail volume and population changes. On average, about 2,000 ZIP codes change annually. Our US database is updated regularly to reflect the current USPS data.

Yes, large cities can have dozens or even hundreds of ZIP codes. New York City, for example, has over 170 ZIP codes across its five boroughs. Similarly, large cities in other countries have multiple postal codes to handle the volume and variety of mail delivery areas. Our lookup tool returns all ZIP codes associated with a searched city.

A ZIP+4 code extends the standard 5-digit US ZIP code with a hyphen and 4 additional digits (e.g., 10001-1234). The extra 4 digits identify a specific delivery segment — such as a city block, a group of apartments, an office building, or a large-volume mail recipient. ZIP+4 codes are not required for mail delivery but speed up sorting and can result in postage discounts for bulk mailers.

Yes, ZipCode.live is completely free to use. You can search, browse, and look up ZIP codes and postal codes for any country without creating an account or paying any fee. We cover 200+ countries and territories with 10 million+ postal code entries, all freely accessible.