US State Abbreviations List
US address forms often require two-letter state codes. This page lists common abbreviations and explains how to test state fields correctly.
Why state abbreviations matter
Many US forms expect two-letter state codes instead of full state names. If your product stores the wrong format, imports, validation, and exports can fail.
Common US state abbreviations
- CA — California
- NY — New York
- TX — Texas
- WA — Washington
- FL — Florida
- AK — Alaska
- DE — Delaware
- MT — Montana
- NH — New Hampshire
- OR — Oregon
Common state-field mistakes
- Saving full names where two-letter codes are expected.
- Mixing US states with non-US province logic.
- Not validating codes during CSV import.
- Displaying abbreviations without a readable full-name fallback.
How to test US state fields
Use fictional addresses with matching city, state, and ZIP Code combinations. Test both user-facing forms and back-office import flows.
FAQ
Should US forms accept full state names and abbreviations?
Ideally yes. Accept both where practical, then normalize to the required storage format.
Why do many forms ask for two-letter state codes?
Because many downstream systems, shipping providers, tax tools, and CRMs use standardized two-letter state abbreviations.
Can I test these fields with fictional addresses?
Yes. Fictional examples are suitable for state validation, field mapping, and CSV import or export testing.
Should state labels show the full name too?
Usually yes. Showing both code and name improves usability while preserving the canonical storage format.