A Valid US Address Example
A valid US address example under USPS Publication 28 has exactly two lines: a delivery-address line (street number, street name, and a standardized suffix such as ST, AVE, or BLVD) and a last line carrying the city, the two-letter state abbreviation, and the ZIP+4 code — for example "48213 Barton Springs Rd" on the first line and "Austin TX 78704-1234" on the last. Publication 28 defines a "standardized" address as one using the Postal Service's own official abbreviations, and a "complete" address as one containing everything needed to match the ZIP+4 and City State files (United States Postal Service — Postal Explorer).
Every US record Fake Addresses generates follows exactly this two-line structure, because the coherence guarantee behind the site depends on the output surviving a real format and parser check, not just looking plausible to a human reader. A street name and ZIP code that agree with each other but ignore Publication 28's abbreviation rules would still fail a real address-validation integration, which defeats the entire point of using generated data to test one.
The last line matters as much as the street line. A US ZIP+4 code narrows a delivery down to a specific carrier route or even a specific building, so a test record whose ZIP+4 does not match its own city and state is a bug a validation-focused QA suite should catch immediately. That is exactly why Fake Addresses derives every field of a record from the same single point rather than composing city, state and ZIP+4 independently and hoping they agree.
Street-Suffix Abbreviations
USPS Publication 28 Appendix C1 sets the official abbreviation for every street suffix a US address can carry (United States Postal Service — Postal Explorer). A handful of the most common ones:
| Full suffix | Official abbreviation |
|---|---|
| STREET | ST |
| AVENUE | AVE |
| BOULEVARD | BLVD |
| ROAD | RD |
| DRIVE | DR |
| LANE | LN |
| COURT | CT |
| TRAIL | TRL |
How This Compares to Other Countries
A US address's field order is the exception, not the rule, internationally — UPU S42 templates exist specifically because the ordering below genuinely varies by country (Universal Postal Union).
| Country | Last-line order | Postal-code position |
|---|---|---|
| United States | City, State, ZIP+4 | End of last line |
| United Kingdom | Post town, postcode on its own line | Final line, own line |
| Canada | City, province, postal code | End of last line |
| India | City, state, PIN code | End of last line |
Frequently asked questions
Does Fake Addresses format every US address the same way?
Yes. Every US record Fake Addresses generates follows the same USPS Publication 28 two-line structure shown above — a delivery-address line and a last line of city, state and ZIP+4 — checked against the standard before it is shown.
Where does the street-suffix abbreviation list come from?
The abbreviation table above comes directly from USPS Publication 28 Appendix C1, the Postal Service's own official reference, not a guessed-at convention. Fake Addresses formats every generated US street suffix against that same table rather than inventing its own shorthand.
Why does a US ZIP+4 matter for test data?
A ZIP+4 narrows a US delivery down to a specific carrier route, so a test record whose ZIP+4 does not match its own city and state is exactly the kind of bug Fake Addresses is built to make impossible — every field comes from the same generated point.
Sources
- United States Postal Service — Postal Explorer — USPS Publication 28 defines a "standardized address" as one using official USPS abbreviations, and a "complete address" as one containing everything needed to match the ZIP+4 and City State files.
- United States Postal Service — Postal Explorer — USPS Publication 28 Appendix C1 sets the official street-suffix abbreviation table (for example AVENUE to AVE, BOULEVARD to BLVD).
- Universal Postal Union — The Universal Postal Union runs an addressing-solutions programme, including international addressing standards and assistance to member countries whose addresses do not follow a US or UK-style format.
- U.S. the national statistical agency — A ZCTA (ZIP Code Tabulation Area) is a the national statistical agency geographic approximation of a ZIP Code built from Census tabulation blocks; not every valid ZIP Code has a 2020 ZCTA.