# US ZIP Code Validator

Validate United States ZIP codes including standard 5-digit and ZIP+4 formats

> Canonical page: https://elysiatools.com/en/tools/us-zip-code-validator

- **Category:** Validation

- **Keywords:** zip, postal, code, us, usa, united states, address, validator, zip+4

## Overview

The US ZIP Code Validator is a straightforward online tool that checks if a given ZIP code is valid in the United States. It supports both the standard 5-digit format and the extended ZIP+4 format, helping ensure address data accuracy.

## Inputs

- **ZIP Code** (text): Enter US ZIP Code (e.g., 90210 or 12345-6789)...

## When to use

- When validating user-entered ZIP codes in online forms to prevent submission errors.
- When cleaning address lists in spreadsheets or databases to identify invalid postal codes.
- When developing applications that require US ZIP code format compliance for data integrity.

## How it works

- Enter the ZIP code into the input field provided.
- The tool checks the input against valid US ZIP code patterns (5 digits or 5 digits followed by a hyphen and 4 digits).
- It returns a text result indicating whether the ZIP code is valid or not.
- For invalid entries, it may highlight format issues to guide correction.

## Use cases

- E-commerce websites validating shipping addresses during the checkout process.
- Customer support teams verifying ZIP codes in contact records to reduce delivery errors.
- Data analysts cleaning address datasets in tools like Excel or Google Sheets before analysis.

## Frequently asked questions

### What ZIP code formats does this tool validate?

It validates standard 5-digit ZIP codes (e.g., 90210) and ZIP+4 codes (e.g., 12345-6789).

### Is there a cost to use this validator?

No, it is a free tool with no hidden charges or registration required.

### Can it validate postal codes from other countries?

No, this tool is designed exclusively for United States ZIP codes.

### What happens if I enter an invalid ZIP code?

The tool will return a result indicating the code is invalid, often with a note on the expected format.

### Does this tool verify if a ZIP code actually exists in the US postal system?

It only checks the format; for existence verification, use a dedicated postal service lookup.

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## Samples

- [US City & ZIP Code Samples](https://elysiatools.com/en/samples/us-city-zip): Collection of US cities with their ZIP codes for validation testing
- [Global Postal Code Samples](https://elysiatools.com/en/samples/global-postal-code): Collection of postal codes from various countries for validation testing
- [QR Code Samples](https://elysiatools.com/en/samples/qrcode-samples): Sample QR code images for testing QR code reading and generation tools
- [Code Comment Samples](https://elysiatools.com/en/samples/code-comment-samples): Sample code files with various comment styles for testing comment removal

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