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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 Winneshiek, Iowa

Browse Winneshiek ZIP Codes

ZIP Codes in Winneshiek 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 Winneshiek ZIP Codes, you can easily identify the correct code for mailing, business, or geographic purposes.

Decorah

Post Office	Decorah
Division	Winneshiek
Pincode	52101

Calmar

Post Office	Calmar
Division	Winneshiek
Pincode	52132

Ossian

Post Office	Ossian
Division	Winneshiek
Pincode	52161

Fort Atkinson

Post Office	Fort Atkinson
Division	Winneshiek
Pincode	52144

Ridgeway

Post Office	Ridgeway
Division	Winneshiek
Pincode	52165

Castalia

Post Office	Castalia
Division	Winneshiek
Pincode	52133

Total Post Offices (8) Page 1 of 2
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Cities in Winneshiek

8 cities in Winneshiek County | List of ZIP Codes in Iowa

ZIP codes in Winneshiek County, Iowa 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 Winneshiek County.

Businesses and service providers rely on accurate ZIP code information in Winneshiek 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 Iowa.

Knowing the correct ZIP codes in Winneshiek 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 Winneshiek County, making ZIP codes an essential part of daily life and business operations.