US United States Major Regions Postal Code Details

🏛️ Kentucky
42715
Adair
Postal Range: 42715~42753
 42120
Allen
Postal Range: 42120~42164
 40342
Anderson
Postal Range: 40342
 42022
Ballard
Postal Range: 42022~42087
 42123
Barren
Postal Range: 42123~42160
 40334
Bath
Postal Range: 40334~40374
 40813
Bell
Postal Range: 40813~40988
 41005
Boone
Postal Range: 41005~41094
 40348
Bourbon
Postal Range: 40348~40362
 41101
Boyd
Postal Range: 41101~41168
 40422
Boyle
Postal Range: 40422~40468
 41002
Bracken
Postal Range: 41002~41061
 41310
Breathitt
Postal Range: 41310~41390
 40111
Breckinridge
Postal Range: 40111~40178
 40047
Bullitt
Postal Range: 40047~40166
 42201
Butler
Postal Range: 42201~42288
 42411
Caldwell
Postal Range: 42411~42445
 42020
Calloway
Postal Range: 42020~42076
 41001
Campbell
Postal Range: 41001~41099
 42021
Carlisle
Postal Range: 42021~42070
 41008
Carroll
Postal Range: 41008~41098
 41128
Carter
Postal Range: 41128~41181
 42516
Casey
Postal Range: 42516~42566
 42217
Christian
Postal Range: 42217~42266
 40391
Clark
Postal Range: 40391~40392
 40914
Clay
Postal Range: 40914~40983
 42602
Clinton
Postal Range: 42602~42603
 42033
Crittenden
Postal Range: 42033~42064
 42717
Cumberland
Postal Range: 42717~42759
 42301
Daviess
Postal Range: 42301~42378
 42163
Edmonson
Postal Range: 42163~42285
 41149
Elliott
Postal Range: 41149~41171
 40336
Estill
Postal Range: 40336~40472
 40502
Fayette
Postal Range: 40502~40598
 41037
Fleming
Postal Range: 41037~41093
 41601
Floyd
Postal Range: 41601~41669
 40601
Franklin
Postal Range: 40601~40622
 42041
Fulton
Postal Range: 42041~42050
 41046
Gallatin
Postal Range: 41046~41095
 40410
Garrard
Postal Range: 40410~40461
 41010
Grant
Postal Range: 41010~41097
 42027
Graves
Postal Range: 42027~42088
 40119
Grayson
Postal Range: 40119~42762
 42743
Green
Postal Range: 42743~42782
 41121
Greenup
Postal Range: 41121~41183
 42348
Hancock
Postal Range: 42348~42364
 40121
Hardin
Postal Range: 40121~42788
 40801
Harlan
Postal Range: 40801~40964
 41003
Harrison
Postal Range: 41003~41031
 42713
Hart
Postal Range: 42713~42765
 42402
Henderson
Postal Range: 42402~42458
 40007
Henry
Postal Range: 40007~40075
 42031
Hickman
Postal Range: 42031~42032
 42408
Hopkins
Postal Range: 42408~42464
 40402
Jackson
Postal Range: 40402~40488
 40018
Jefferson
Postal Range: 40018~40299
 40339
Jessamine
Postal Range: 40339~40390
 41204
Johnson
Postal Range: 41204~41274
 41011
Kenton
Postal Range: 41011~41063
 41725
Knott
Postal Range: 41725~41862
 40734
Knox
Postal Range: 40734~40997
 42716
Larue
Postal Range: 42716~42764
 40724
Laurel
Postal Range: 40724~40755
 41124
Lawrence
Postal Range: 41124~41264
 41311
Lee
Postal Range: 41311~41397
 40803
Leslie
Postal Range: 40803~41777
 40826
Letcher
Postal Range: 40826~41858
 41135
Lewis
Postal Range: 41135~41189
 40419
Lincoln
Postal Range: 40419~40489
 42028
Livingston
Postal Range: 42028~42083
 42202
Logan
Postal Range: 42202~42276
 42038
Lyon
Postal Range: 42038~42055
 40385
Madison
Postal Range: 40385~40476
 41426
Magoffin
Postal Range: 41426~41632
 40009
Marion
Postal Range: 40009~40328
 42025
Marshall
Postal Range: 42025~42048
 41203
Martin
Postal Range: 41203~41267
 41034
Mason
Postal Range: 41034~41096
 42001
Mccracken
Postal Range: 42001~42086
 42631
Mccreary
Postal Range: 42631~42653
 42322
Mclean
Postal Range: 42322~42372
 40104
Meade
Postal Range: 40104~40161
 40316
Menifee
Postal Range: 40316~40387
 40310
Mercer
Postal Range: 40310~40372
 42124
Metcalfe
Postal Range: 42124~42214
 42133
Monroe
Postal Range: 42133~42167
 40337
Montgomery
Postal Range: 40337~40353
 41352
Morgan
Postal Range: 41352~41477
 42321
Muhlenberg
Postal Range: 42321~42374
 40004
Nelson
Postal Range: 40004~40107
 40311
Nicholas
Postal Range: 40311~40350
 42320
Ohio
Postal Range: 42320~42370
 40010
Oldham
Postal Range: 40010~40077
 40355
Owen
Postal Range: 40355~40363
 41314
Owsley
Postal Range: 41314~41386
 41006
Pendleton
Postal Range: 41006~41040
 40981
Perry
Postal Range: 40981~41778
 41501
Pike
Postal Range: 41501~41572
 40312
Powell
Postal Range: 40312~40380
 42501
Pulaski
Postal Range: 42501~42567
 41064
Robertson
Postal Range: 41064
 40409
Rockcastle
Postal Range: 40409~40492
 40313
Rowan
Postal Range: 40313~40351
 42629
Russell
Postal Range: 42629~42642
 40324
Scott
Postal Range: 40324~40379
 40003
Shelby
Postal Range: 40003~40076
 42134
Simpson
Postal Range: 42134~42135
 40046
Spencer
Postal Range: 40046~40071
 42718
Taylor
Postal Range: 42718~42758
 42204
Todd
Postal Range: 42204~42286
 42211
Trigg
Postal Range: 42211~42215
 40006
Trimble
Postal Range: 40006~40045
 42437
Union
Postal Range: 42437~42462
 42101
Warren
Postal Range: 42101~42274
 40040
Washington
Postal Range: 40040~40078
 42633
Wayne
Postal Range: 42633
 42404
Webster
Postal Range: 42404~42463
 40701
Whitley
Postal Range: 40701~40769
 41301
Wolfe
Postal Range: 41301~41365
 40347
Woodford
Postal Range: 40347~40384

📮US United States Regional Postal Code FAQ & Postal Regulations

📮 What is the format of a US ZIP code?

Standard format is 5 digits (e.g., 10001). Extended format is ZIP+4 (9 digits like 10001-1234) with a hyphen.

🔍 How to find the ZIP code for an address?

Use the USPS ZIP Code Lookup tool by entering the full address on the official USPS website.

⚠️ What happens if I use a wrong ZIP code?

Mail may be delayed, returned, or lost. For important documents, use USPS tracking and verify the ZIP code.

🔄 Do ZIP codes ever change?

Yes, USPS may update ZIP codes due to regional adjustments. Always confirm your ZIP code after an address change.

📦 Is a ZIP code required for international mail to the US?

Absolutely. Always include the US ZIP code at the end of the address (e.g., New York, NY 10001 USA).

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📮 Popular United States Postal Codes