US Address Generator Guide

US Address Generator helps you create synthetic US address records for testing and demos. It includes state-level ZIP code generation, so you can validate checkout flows, address forms, and shipping rules without exposing real user data.

USPS reports 41,552 ZIP Codes across the United States. ZIP codes range from 00501 (Internal Revenue Service, Holtsville, NY) to 99950 (Ketchikan, AK). For product teams, ZIP data is essential for tax estimates, shipping methods, fraud checks, and address validation.

• ZIP launched in 1963: created to improve national mail routing.
• ZIP+4 launched in 1983: adds location precision for sorting and delivery.
• Alaska edge case: upper ZIP range (for example 99950) is useful for shipping rule tests.

Source: USPS Facts — 42,000+ ZIP Codes.

A standard US mailing address is written in 3-4 lines: recipient name, street address (including apartment or suite), and city/state/ZIP. Use all capital letters, no punctuation, and a 2-letter state abbreviation.

Standard US Address Structure

• Line 1: Recipient's Name
• Line 2: Street Address or P.O. Box (e.g., 123 MAIN ST APT 4B)
• Line 3: City, State, and ZIP Code (e.g., NEW YORK NY 10001)
• Line 4: Country (only required if mailing from outside the USA)

Examples

Formatting Tips

• State abbreviations: Use official 2-letter postal codes (e.g., CA, NY).
• ZIP code: Use 5-digit ZIP or ZIP+4 (e.g., 90210-1234) for higher precision.
• Directionals: Include markers like N, S, NW, or SE when present in the address.
• Units: Use # before unit number (e.g., 500 MAIN ST #101) or APT/STE.
• Alignment: Keep address left-aligned; place it in the lower center area of envelopes.

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Generate synthetic US addresses and ZIP codes for QA, demos, and privacy-safe testing.