What Is the Abbreviation for Kentucky?
The standard abbreviation for Kentucky is KY. This page explains why Kentucky uses KY, 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 Kentucky?
The abbreviation for Kentucky is KY. In older writing you might see Ky., but today's mailing, form, and database standard is KY.
KY is used for Kentucky in mailing addresses, shipping labels, government forms, and most databases.
Why Kentucky Uses KY
Kentucky's USPS abbreviation is KY.
USPS adopted KY for Kentucky in 1963. The older abbreviation Ky. still appears in older sources, but KY is the standard postal form today.
Old Abbreviation for Kentucky
Before the USPS two-letter system became the mailing standard in 1963, printed reference books and newspapers often used longer abbreviations with punctuation. For Kentucky, that older style was usually Ky..
That older form still appears in historical texts, archival material, and some legacy style guides, but the modern postal and database standard is KY. If someone searches for old abbreviation for Kentucky, the practical answer is to recognize Ky. and use KY in current writing and addresses.
How to Write Kentucky 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.
KY Compared With Similar State Codes
KY is usually checked against KS because Kansas and Kentucky share the same first letter and short two-letter format.
Related Abbreviation Questions
These states share a first letter, region, or alphabetical position with Kentucky and are commonly checked alongside it.
Capital, Region, and Context
Kentucky belongs to the South region. Its capital is Frankfort, and its postal code KY is used in addresses, forms, and databases throughout the country.
Kentucky entered the Union on June 1, 1792.
FAQ
What is the abbreviation for Kentucky?
The standard USPS abbreviation for Kentucky is KY.
What is the postal abbreviation for Kentucky?
KY is the two-letter postal abbreviation for Kentucky. It is the form used in mailing addresses, shipping labels, forms, and databases.
How do you abbreviate Kentucky?
Abbreviate Kentucky as KY in current USPS, mailing, and database use.
Why is Kentucky abbreviated KY?
Kentucky's USPS abbreviation is KY.
What does KY stand for?
KY stands for Kentucky in the USPS state abbreviation system.
What is the old abbreviation for Kentucky?
Older editorial styles often wrote Kentucky as Ky.. For mailing and database use, the modern standard is KY.
How do you write a Kentucky mailing address?
Use the city name, then the two-letter postal code KY, then the ZIP Code. For example: Frankfort, KY 00000.
What state is KY?
KY is the postal abbreviation for Kentucky, located in the South region. The capital is Frankfort.
Test All 50 State Abbreviations
Now that you know KY stands for Kentucky, see how many of the other 49 you can get right. The M-states and I-states trip up most people.