What Is the Abbreviation for Oregon?
The standard abbreviation for Oregon is OR. This page explains why Oregon uses OR, how the code fits into the modern USPS system, what older printed abbreviations looked like, and which nearby or similar state codes people commonly confuse with it.
What Is the Abbreviation for Oregon?
The abbreviation for Oregon is OR. In older writing you might see Oreg., but today's mailing, form, and database standard is OR.
Use OR for Oregon in mailing addresses, shipping labels, official forms, and database entries.
Why Oregon Uses OR
Oregon uses the USPS abbreviation OR.
OR became Oregon's standard postal abbreviation in 1963. The older form Oreg. still appears in older writing, but OR is the form used in current addresses and forms.
Old Abbreviation for Oregon
Before the USPS two-letter system became the mailing standard in 1963, printed reference books and newspapers often used longer abbreviations with punctuation. For Oregon, that older style was usually Oreg..
That older form still appears in historical texts, archival material, and some legacy style guides, but the modern postal and database standard is OR. If someone searches for old abbreviation for Oregon, the practical answer is to recognize Oreg. and use OR in current writing and addresses.
How to Write Oregon in an Address
In standard American addressing, the state line uses the city name followed by the two-letter code and ZIP Code. The abbreviation stays uppercase and does not take periods.
That same format applies in checkout forms, school worksheets, CRM exports, spreadsheets, shipping labels, and government databases — anywhere a two-letter state code is required.
OR Compared With Similar State Codes
OR is clear in an address, but on its own it can blend into ordinary language and search syntax.
Related Abbreviation Questions
These states share a first letter, region, or alphabetical position with Oregon and are commonly checked alongside it.
Capital, Region, and Context
Oregon belongs to the West region. Its capital is Salem, and its postal code OR is used in addresses, forms, and databases throughout the country.
Oregon entered the Union on February 14, 1859.
FAQ
What is the abbreviation for Oregon?
The standard USPS abbreviation for Oregon is OR.
What is the postal abbreviation for Oregon?
OR is the two-letter postal abbreviation for Oregon. It is the form used in mailing addresses, shipping labels, forms, and databases.
How do you abbreviate Oregon?
Abbreviate Oregon as OR in current USPS, mailing, and database use.
Why is Oregon abbreviated OR?
Oregon uses the USPS abbreviation OR.
What does OR stand for?
OR stands for Oregon in the USPS state abbreviation system.
What is the old abbreviation for Oregon?
Older editorial styles often wrote Oregon as Oreg.. For mailing and database use, the modern standard is OR.
How do you write a Oregon mailing address?
Use the city name, then the two-letter postal code OR, then the ZIP Code. For example: Salem, OR 00000.
What state is OR?
OR is the postal abbreviation for Oregon, located in the West region. The capital is Salem.
Test All 50 State Abbreviations
Now that you know OR stands for Oregon, see how many of the other 49 you can get right. The M-states and I-states trip up most people.