US United States Major Regions Postal Code Details
๐๏ธ Marin ยท California
94949
Bel Marin Keyes
94920
Belvedere
94920
Belvedere Tiburon
94945
Black Point
94924
Bolinas
94925
Corte Madera
94929
Dillon Beach
94930
Fairfax
94998
Firemans Fund Ins
94933
Forest Knolls
94914
Greenbrae
94949
Ignacio
94937
Inverness
94904
Kent Woodlands
94914
Kentfield
94938
Lagunitas
94939
Larkspur
94965
Marin City
94903
Marinwood
94940
Marshall
94942
Mill Valley
94915
Mission Rafael
94965
Muir Beach
94941
Muir Woods
94946
Nicasio
94949
Novato
94950
Olema
94956
Point Reyes Station
94957
Ross
94960
San Anselmo
94963
San Geronimo
94945
San Marin
94974
San Quentin
94912
San Rafael
94903
Santa Venetia
94966
Sausalito
94970
Stinson Beach
94941
Strawberry Point
94941
Tamalpais Valley
94903
Terra Linda
94920
Tiburon
94971
Tomales
94973
Woodacre
๐ฎUS United States Regional Postal Code FAQ & Postal Regulations
๐ฎ 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.
๐ 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.
โ ๏ธ 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.
๐ Do ZIP codes ever change?
Yes, USPS may update ZIP codes due to regional adjustments. Always confirm your ZIP code after an address change.
๐ฆ 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).