Kentucky ZIP Codes: Full List & Map

Bill Taylor

-Nov 7, 2025

Introduction

Are you looking for a comprehensive list of Kentucky ZIP codes? Whether you're planning a move, sending a package, or just curious about the Bluegrass State's postal system, understanding ZIP codes is essential. This guide provides a detailed overview of Kentucky ZIP codes, including how they work, lists by city, and answers to frequently asked questions.

Understanding ZIP Codes

ZIP codes, or Zone Improvement Plan codes, were introduced by the United States Postal Service (USPS) in 1963 to streamline mail delivery. A ZIP code is a five-digit number that identifies a specific geographic delivery area. In 1983, the USPS added a four-digit extension, known as ZIP+4, to further refine delivery routes.

How ZIP Codes Work

The five-digit ZIP code is structured as follows:

First Digit: Represents a broad geographic area, ranging from 0 in the Northeast to 9 in the West.
Second and Third Digits: Indicate a specific region or metropolitan area within the state.
Fourth and Fifth Digits: Designate a local post office or delivery zone.

ZIP+4 Codes

The ZIP+4 code adds an extra level of precision. The four digits after the hyphen represent:

Fifth and Sixth Digits: Identify a delivery sector (several blocks, a group of streets, or a small geographic area).
Seventh and Eighth Digits: Specify a delivery segment (a building, a floor, or a side of a street).

Kentucky ZIP Code Map

Kentucky is primarily covered by ZIP code prefixes in the 400-427 range. This section provides a general overview of how these prefixes are distributed across the state.

Key ZIP Code Prefixes in Kentucky:

400-402: Northern Kentucky, including Louisville.
403-404: Central Kentucky, including Lexington and Frankfort.
407-409: Southeastern Kentucky.
410-412: Northeastern Kentucky.
413-418: Eastern Kentucky.
420-423: Western Kentucky.
425-427: South-Central Kentucky.

Kentucky ZIP Codes by City

This section lists ZIP codes for major cities in Kentucky, providing a comprehensive reference for your needs. — India Vs Pakistan Cricket Match: Scorecard & Highlights

Louisville ZIP Codes

Louisville, the largest city in Kentucky, has numerous ZIP codes due to its size and population density. Here are some of the primary ZIP codes in Louisville:

40201
40202
40203
40204
40205
40206
40207
40208
40209
40210
40211
40212
40213
40214
40215
40216
40217
40218
40219
40220
40221
40222
40223
40225
40228
40229
40231
40232
40233
40241
40242
40243
40245
40250
40251
40252
40253
40255
40256
40257
40258
40259
40261
40266
40268
40269
40270
40272
40280
40281
40282
40283
40285
40287
40289
40291
40292
40294
40295
40296
40297
40298
40299

Lexington ZIP Codes

Lexington, the second-largest city in Kentucky, also has multiple ZIP codes. Here are the primary ZIP codes for Lexington:

40502
40503
40504
40505
40506
40507
40508
40509
40510
40511
40512
40513
40514
40515
40516
40517
40522
40523
40524
40526
40533
40536
40544
40546
40555
40575
40576
40577
40578
40579
40580
40581
40582
40583
40584
40588
40589
40591
40598

Other Major Cities and Their ZIP Codes

Bowling Green: 42101, 42102, 42103, 42104, 42122, 42123, 42129
Owensboro: 42301, 42302, 42303, 42304, 42391, 42399
Covington: 41011, 41012, 41014, 41015, 41016, 41017
Richmond: 40475, 40476
Hopkinsville: 42240, 42241, 42242
Florence: 41042, 41048
Georgetown: 40324

How to Find a ZIP Code

If you need to find a ZIP code for a specific address in Kentucky, several online tools and resources are available. — Stephen Curry: The Shot That Changed The Game

USPS ZIP Code Lookup

The official USPS website offers a ZIP Code Lookup tool that allows you to find ZIP codes by address or city. This is the most reliable source for accurate ZIP code information.

Third-Party ZIP Code Finders

Numerous third-party websites, such as Zip-Codes.com and others, also offer ZIP code lookup tools. While these can be convenient, it's always best to verify the information with the USPS.

Common Uses for ZIP Codes

ZIP codes are used for various purposes beyond mail delivery. Understanding their uses can help you appreciate their importance.

Mail Delivery

As mentioned, ZIP codes are crucial for efficient mail sorting and delivery by the USPS. They help direct mail to the correct local post office and delivery routes. — UK Vs. Auburn: Where To Watch Football

Business and Marketing

Businesses use ZIP codes for targeted marketing campaigns. By identifying specific geographic areas, companies can tailor their advertisements and promotions to reach the right customers.

Demographics and Statistics

ZIP codes are often used in demographic studies and statistical analysis. They provide a convenient way to aggregate data and understand population distributions, income levels, and other demographic factors.

Online Shopping and Shipping

When making online purchases, ZIP codes are required for calculating shipping costs and delivery times. They ensure that packages are routed correctly through the shipping network.

FAQ

What is the ZIP code for the Kentucky State Capitol?

The ZIP code for the Kentucky State Capitol in Frankfort is 40601.

How do I find the ZIP code for an address in Kentucky?

You can use the USPS ZIP Code Lookup tool on the official USPS website or other third-party ZIP code finders.

Are Kentucky ZIP codes five or nine digits?

Kentucky ZIP codes can be either five digits (basic ZIP code) or nine digits (ZIP+4 code).

Do all cities in Kentucky have multiple ZIP codes?

No, not all cities have multiple ZIP codes. Larger cities like Louisville and Lexington have numerous ZIP codes due to their size and population density, while smaller towns may have only one.

How often do ZIP codes change?

ZIP codes are relatively stable, but they can change due to population growth, urban development, or postal service adjustments. It's always a good idea to verify ZIP codes periodically, especially for important mailings.

Conclusion

Kentucky ZIP codes are an essential part of the state's postal system and play a vital role in mail delivery, business operations, and demographic analysis. Whether you're looking up a specific ZIP code, understanding how they work, or using them for various purposes, this guide provides a comprehensive overview. Be sure to use reliable resources like the USPS website to ensure the accuracy of your ZIP code information.