United States Major Regions Postal Code Details

US United States Major Regions Postal Code Details

🏛️ South Dakota

57368

Aurora

Postal Range: 57368~57383

57324

Beadle

Postal Range: 57324~57399

57551

Bennett

Postal Range: 57551~57714

57059

Bon Homme

Postal Range: 57059~57315

57002

Brookings

Postal Range: 57002~57276

57401

Brown

Postal Range: 57401~57481

57325

Brule

Postal Range: 57325~57370

57339

Buffalo

Postal Range: 57339~57341

57717

Butte

Postal Range: 57717~57788

57632

Campbell

Postal Range: 57632~57648

57329

Charles Mix

Postal Range: 57329~57380

57217

Clark

Postal Range: 57217~57322

57010

Clay

Postal Range: 57010~57073

57201

Codington

Postal Range: 57201~57272

57621

Corson

Postal Range: 57621~57660

57722

Custer

Postal Range: 57722~57773

57301

Davison

Postal Range: 57301~57363

57219

Day

Postal Range: 57219~57468

57213

Deuel

Postal Range: 57213~57268

57625

Dewey

Postal Range: 57625~57661

57313

Douglas

Postal Range: 57313~57364

57428

Edmunds

Postal Range: 57428~57471

57735

Fall River

Postal Range: 57735~57782

57435

Faulk

Postal Range: 57435~57473

57216

Grant

Postal Range: 57216~57269

57317

Gregory

Postal Range: 57317~57571

57552

Haakon

Postal Range: 57552~57567

57221

Hamlin

Postal Range: 57221~57248

57362

Hand

Postal Range: 57362~57467

57311

Hanson

Postal Range: 57311~57340

57650

Harding

Postal Range: 57650~57776

57501

Hughes

Postal Range: 57501~57536

57029

Hutchinson

Postal Range: 57029~57376

57345

Hyde

Postal Range: 57345~57540

57521

Jackson

Postal Range: 57521~57750

57312

Jerauld

Postal Range: 57312~57382

57531

Jones

Postal Range: 57531~57562

57051

Kingsbury

Postal Range: 57051~57353

57016

Lake

Postal Range: 57016~57076

57732

Lawrence

Postal Range: 57732~57799

57013

Lincoln

Postal Range: 57013~57108

57365

Lyman

Postal Range: 57365~57576

57232

Marshall

Postal Range: 57232~57454

57012

Mccook

Postal Range: 57012~57374

57437

Mcpherson

Postal Range: 57437~57457

57626

Meade

Postal Range: 57626~57792

57560

Mellette

Postal Range: 57560~57585

57321

Miner

Postal Range: 57321~57349

57003

Minnehaha

Postal Range: 57003~57198

57017

Moody

Postal Range: 57017~57065

57716

Oglala Lakota

Postal Range: 57716~57794

57701

Pennington

Postal Range: 57701~57791

57620

Perkins

Postal Range: 57620~57649

57442

Potter

Postal Range: 57442~57475

57224

Roberts

Postal Range: 57224~57279

57314

Sanborn

Postal Range: 57314~57385

57424

Spink

Postal Range: 57424~57477

57532

Stanley

Postal Range: 57532~57537

57520

Sully

Postal Range: 57520~57564

57555

Todd

Postal Range: 57555~57572

57528

Tripp

Postal Range: 57528~57584

57014

Turner

Postal Range: 57014~57070

57001

Union

Postal Range: 57001~57049

57420

Walworth

Postal Range: 57420~57631

57031

Yankton

Postal Range: 57031~57078

57622

Ziebach

Postal Range: 57622~57623

📮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).