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A ZIP+4 code adds four extra digits to a standard ZIP code to help USPS sort and deliver mail more accurately.

Are ZIP codes the same as postal codes?

ZIP codes are the postal code system used in the United States. Other countries use different postal code formats.

Atchison County ZIP Codes

Browse Atchison ZIP Codes

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

Atchison

Post Office	Atchison
County	Atchison
ZIP Code	66002

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Effingham

Post Office	Effingham
County	Atchison
ZIP Code	66023

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Lancaster

Post Office	Lancaster
County	Atchison
ZIP Code	66041

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Cummings

Post Office	Cummings
County	Atchison
ZIP Code	66016

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