United States Major Regions Postal Code Details

US United States Major Regions Postal Code Details

🏛️ Louisiana

70516

Acadia

Postal Range: 70516~70578

70638

Allen

Postal Range: 70638~71463

70346

Ascension

Postal Range: 70346~70778

70339

Assumption

Postal Range: 70339~70393

71320

Avoyelles

Postal Range: 71320~71369

70634

Beauregard

Postal Range: 70634~70662

71001

Bienville

Postal Range: 71001~71080

71006

Bossier

Postal Range: 71006~71172

71004

Caddo

Postal Range: 71004~71166

70601

Calcasieu

Postal Range: 70601~70669

71415

Caldwell

Postal Range: 71415~71441

70631

Cameron

Postal Range: 70631~70645

71340

Catahoula

Postal Range: 71340~71425

71003

Claiborne

Postal Range: 71003~71079

71316

Concordia

Postal Range: 71316~71377

71027

De Soto

Postal Range: 71027~71078

70704

East Baton Rouge

Postal Range: 70704~70898

71254

East Carroll

Postal Range: 71254~71286

70722

East Feliciana

Postal Range: 70722~70789

70515

Evangeline

Postal Range: 70515~71367

71219

Franklin

Postal Range: 71219~71378

71407

Grant

Postal Range: 71407~71467

70513

Iberia

Postal Range: 70513~70569

70721

Iberville

Postal Range: 70721~70788

71226

Jackson

Postal Range: 71226~71268

70001

Jefferson

Postal Range: 70001~70358

70532

Jefferson Davis

Postal Range: 70532~70650

71342

La Salle

Postal Range: 71342~71480

70501

Lafayette

Postal Range: 70501~70598

70301

Lafourche

Postal Range: 70301~70394

71227

Lincoln

Postal Range: 71227~71275

70449

Livingston

Postal Range: 70449~70786

71233

Madison

Postal Range: 71233~71284

71220

Morehouse

Postal Range: 71220~71264

71002

Natchitoches

Postal Range: 71002~71497

70112

Orleans

Postal Range: 70112~70195

71201

Ouachita

Postal Range: 71201~71294

70037

Plaquemines

Postal Range: 70037~70093

70715

Pointe Coupee

Postal Range: 70715~70783

71301

Rapides

Postal Range: 71301~71485

71019

Red River

Postal Range: 71019~71034

71218

Richland

Postal Range: 71218~71279

71065

Sabine

Postal Range: 71065~71486

70032

Saint Bernard

Postal Range: 70032~70092

70030

Saint Charles

Postal Range: 70030~70087

70441

Saint Helena

Postal Range: 70441~70453

70052

Saint James

Postal Range: 70052~70792

70512

Saint Landry

Postal Range: 70512~71358

70517

Saint Martin

Postal Range: 70517~70582

70340

Saint Mary

Postal Range: 70340~70540

70420

Saint Tammany

Postal Range: 70420~70471

70401

Tangipahoa

Postal Range: 70401~70466

71357

Tensas

Postal Range: 71357~71375

70343

Terrebonne

Postal Range: 70343~70397

71222

Union

Postal Range: 71222~71277

70510

Vermilion

Postal Range: 70510~70575

70639

Vernon

Postal Range: 70639~71496

70426

Washington

Postal Range: 70426~70467

71018

Webster

Postal Range: 71018~71075

70710

West Baton Rouge

Postal Range: 70710~70767

71237

West Carroll

Postal Range: 71237~71266

70712

West Feliciana

Postal Range: 70712~70787

71404

Winn

Postal Range: 71404~71483

📮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).