How do I find a ZIP code by city or state?

You can find ZIP codes by city or state using our search tool. Just enter the city or state name, and you'll see all related ZIP codes instantly.

What is a ZIP+4 code?

A ZIP+4 code adds four digits to the basic five-digit ZIP code. It helps the USPS deliver mail more precisely to specific addresses or buildings.

Are ZIP codes the same as postal codes?

ZIP codes are the U.S. version of postal codes, used by the USPS to identify delivery areas. Other countries use postal codes with different formats.

Complete ZIP Codes For Saint Clair, Michigan

Browse Saint Clair ZIP Codes

ZIP Codes in Saint Clair County help organize mail delivery and define local service areas. Each ZIP Code corresponds to a specific community or post office, ensuring residents, businesses, and visitors can find accurate address information quickly. By browsing the complete list of Saint Clair ZIP Codes, you can easily identify the correct code for mailing, business, or geographic purposes.

Port Huron

Post Office	Port Huron
Division	Saint Clair
Pincode	48060

Fort Gratiot

Post Office	Fort Gratiot
Division	Saint Clair
Pincode	48059

Saint Clair

Post Office	Saint Clair
Division	Saint Clair
Pincode	48079

Algonac

Post Office	Algonac
Division	Saint Clair
Pincode	48001

Marysville

Post Office	Marysville
Division	Saint Clair
Pincode	48040

Smiths Creek

Post Office	Smiths Creek
Division	Saint Clair
Pincode	48074

Total Post Offices (23) Page 1 of 4
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Cities in Saint Clair

22 cities in Saint Clair County | List of ZIP Codes in Michigan

ZIP codes in Saint Clair County, Michigan not only facilitate mail delivery but also provide important demographic and geographic insights. Each ZIP code corresponds to specific areas within the county, helping businesses, residents, and researchers understand population distribution, city locations, and service coverage across Saint Clair County.

Businesses and service providers rely on accurate ZIP code information in Saint Clair County to plan deliveries, target customers, and ensure timely services. By referencing the full list of ZIP codes, companies can optimize logistics and outreach, while residents can easily identify the correct postal codes for their addresses within Michigan.

Knowing the correct ZIP codes in Saint Clair County ensures fast and accurate mail delivery from the United States Postal Service (USPS). It also helps travelers, online shoppers, and local residents navigate efficiently across towns and communities in Saint Clair County, making ZIP codes an essential part of daily life and business operations.