United States Major Regions Postal Code Details

US United States Major Regions Postal Code Details

🏛️ Michigan

48705

Alcona

Postal Range: 48705~48762

49806

Alger

Postal Range: 49806~49895

49010

Allegan

Postal Range: 49010~49453

49707

Alpena

Postal Range: 49707~49766

49611

Antrim

Postal Range: 49611~49729

48610

Arenac

Postal Range: 48610~48766

49908

Baraga

Postal Range: 49908~49970

48897

Barry

Postal Range: 48897~49333

48611

Bay

Postal Range: 48611~48747

49616

Benzie

Postal Range: 49616~49683

49022

Berrien

Postal Range: 49022~49129

49028

Branch

Postal Range: 49028~49255

49011

Calhoun

Postal Range: 49011~49245

49031

Cass

Postal Range: 49031~49130

49711

Charlevoix

Postal Range: 49711~49796

49701

Cheboygan

Postal Range: 49701~49799

49710

Chippewa

Postal Range: 49710~49793

48617

Clare

Postal Range: 48617~48633

48808

Clinton

Postal Range: 48808~48906

49733

Crawford

Postal Range: 49733~49739

49807

Delta

Postal Range: 49807~49894

49801

Dickinson

Postal Range: 49801~49892

48813

Eaton

Postal Range: 48813~49096

49706

Emmet

Postal Range: 49706~49770

48411

Genesee

Postal Range: 48411~48557

48612

Gladwin

Postal Range: 48612~48652

49911

Gogebic

Postal Range: 49911~49969

49610

Grand Traverse

Postal Range: 49610~49696

48615

Gratiot

Postal Range: 48615~48889

49227

Hillsdale

Postal Range: 49227~49288

49905

Houghton

Postal Range: 49905~49965

48413

Huron

Postal Range: 48413~48759

48805

Ingham

Postal Range: 48805~49285

48809

Ionia

Postal Range: 48809~48887

48730

Iosco

Postal Range: 48730~48770

49902

Iron

Postal Range: 49902~49964

48804

Isabella

Postal Range: 48804~49310

49201

Jackson

Postal Range: 49201~49284

49001

Kalamazoo

Postal Range: 49001~49097

49633

Kalkaska

Postal Range: 49633~49680

49301

Kent

Postal Range: 49301~49599

49805

Keweenaw

Postal Range: 49805~49950

49304

Lake

Postal Range: 49304~49656

48003

Lapeer

Postal Range: 48003~48760

49621

Leelanau

Postal Range: 49621~49682

49220

Lenawee

Postal Range: 49220~49289

48114

Livingston

Postal Range: 48114~48855

49853

Luce

Postal Range: 49853~49868

49719

Mackinac

Postal Range: 49719~49838

48005

Macomb

Postal Range: 48005~48397

49613

Manistee

Postal Range: 49613~49689

49808

Marquette

Postal Range: 49808~49885

49402

Mason

Postal Range: 49402~49458

49305

Mecosta

Postal Range: 49305~49346

49812

Menominee

Postal Range: 49812~49896

48618

Midland

Postal Range: 48618~48686

49632

Missaukee

Postal Range: 49632~49667

48110

Monroe

Postal Range: 48110~49270

48811

Montcalm

Postal Range: 48811~49347

49709

Montmorency

Postal Range: 49709~49756

49303

Muskegon

Postal Range: 49303~49463

49309

Newaygo

Postal Range: 49309~49413

48007

Oakland

Postal Range: 48007~48462

49420

Oceana

Postal Range: 49420~49459

48635

Ogemaw

Postal Range: 48635~48761

49910

Ontonagon

Postal Range: 49910~49971

49631

Osceola

Postal Range: 49631~49688

48619

Oscoda

Postal Range: 48619~48647

49730

Otsego

Postal Range: 49730~49797

49401

Ottawa

Postal Range: 49401~49464

49743

Presque Isle

Postal Range: 49743~49779

48627

Roscommon

Postal Range: 48627~48656

48415

Saginaw

Postal Range: 48415~48787

48001

Saint Clair

Postal Range: 48001~48097

49030

Saint Joseph

Postal Range: 49030~49099

48401

Sanilac

Postal Range: 48401~48472

49817

Schoolcraft

Postal Range: 49817~49883

48414

Shiawassee

Postal Range: 48414~48882

48435

Tuscola

Postal Range: 48435~48768

49013

Van Buren

Postal Range: 49013~49090

48103

Washtenaw

Postal Range: 48103~48198

48101

Wayne

Postal Range: 48101~48288

49601

Wexford

Postal Range: 49601~49668

📮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).