Random ZIP Code Generator - US Test Data

Generate five-digit US-style ZIP codes for software testing, form validation, database seeds, interface mockups, documentation, and tutorials. Each result uses a geographically plausible first digit and includes a representative state abbreviation so test output is easier to read.

Plausible format is not address validation

The generator does not query the USPS ZIP Code database. A result may coincide with a real postal code, may belong to a different locality than the displayed state label, or may be unassigned. Use it to test length, character rules, parsing, layout, and sample-data flows - not shipping, taxes, eligibility, identity checks, geocoding, or a real person's location.

For deterministic automated tests, store approved fixtures because freshly randomized values can make failures harder to reproduce. For production address validation, use an authoritative postal service or licensed address provider and handle ZIP+4 when your application requires it.

Generation happens in the browser. No code is looked up, logged, or associated with a real user. Never use fabricated location data to evade verification, misrepresent residency, place fraudulent orders, or interfere with another person's services.